| HS Code | 837264 |
| Product Name | Hydetech 5015 |
| Product Type | Fire-resistant hydraulic fluid |
| Fluid Basis | Water glycol |
| Appearance | Red liquid |
| Viscosity At 40 C | 45 cSt |
| Viscosity Index | 170 |
| Density At 20 C | 1.05 g/cm3 |
| Ph | 9.0 |
| Pour Point | -35 deg C |
| Water Content | 45 % |
As an accredited hydetech 5015 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Hydetech 5015 is packaged in 5-gallon pails, 55-gallon drums, and 275-gallon totes for bulk delivery. |
| Container Loading (20′ FCL) | 20′ FCL loading of Hydetech 5015: palletized drums, secure bracing, labeling, and safe handling per chemical regulations. |
| Shipping | Hydetech 5015 is classified as a non-hazardous hydraulic fluid under normal transport. Ship in sealed drums or IBCs, upright and restrained. Label with product name, SDS hazard markings, and net weight. Provide shipping papers and emergency contacts. Avoid extreme heat or freezing; use covered trailers to prevent leaks. Verify with SDS. |
| Storage | Store Hydetech 5015 in a cool, dry, well-ventilated area away from direct sunlight and incompatible materials. Keep the original container tightly sealed when not in use, and protect it from physical damage, heat, and extreme temperatures. Use proper labelling and secondary containment to prevent leaks. Always follow the manufacturer’s Safety Data Sheet for specific storage requirements. |
| Shelf Life | Store in sealed original container, away from moisture and contaminants. Shelf life is typically five years from manufacture date. |
In EVA-based hot-melt packaging adhesives for case and carton sealing, Hydetech 5015 is compounded at 10–35 wt% of total formulation to shift wet-out on kraft linerboard and to increase fiber-tear adhesion without raising 160°C melt viscosity above 1,200–1,800 mPa·s. The upper loading boundary is controlled by phase compatibility with EVA copolymers containing 18–28 wt% vinyl acetate; EVA grades at 33 wt% vinyl acetate may become hazy and produce char on heated transfer hoses after 6–8 h pot residence at 165–175°C. Production-scale continuous mixing uses a heated kneader or co-rotating twin-screw extruder with L/D ratio 40:1, barrel temperature profile 120–170°C, and gear pump filtration through 200 µm mesh before slot-die coating at 160–180°C onto corrugated board at line speeds of 50–220 m/min. Addition below 10 wt% reduces hot tack and elongation at break on recycled linerboard, while addition above 35 wt% produces viscosity instability and cold-flex cracking. FDA 21 CFR 175.105 covers the adhesive as an indirect food additive for dry and fatty packaging closures; where the coated board contacts aqueous or fatty foods, FDA 21 CFR 176.170/180 applies. Finished articles include glued case and carton closures, tray erection, bag seam adhesives, and elastic attachment in disposable hygiene.
| Control point | Standard / clause | Typical release criterion |
|---|---|---|
| Indirect food adhesive | FDA 21 CFR 175.105 | No migration of adhesive components to food above detectable limits |
| Coated paperboard food contact | FDA 21 CFR 176.170/180 | Component limitations for specific food types |
| Softening point control | ASTM D6493 | Ring-and-ball softening point within supplier tolerance; Gardner ≤ 1 by ASTM D1544 |
| Melt viscosity stability | ASTM D3236 | 800–1,800 mPa·s at 160°C |
When SIS/SBS block copolymer pressure-sensitive adhesives are compounded at 30–35 wt% solids in toluene/ethyl acetate blends, Hydetech 5015 is introduced at 80–120 phr relative to block copolymer to raise loop tack and lower room-temperature cohesive strength only after the styrene end blocks are fully solvated. In high-shear dissolvers equipped with scraped-wall mixing and jacket temperature 30–45°C, the resin is added after the rubber has reached a clear solution; reverse addition produces a viscous lag phase and can leave undissolved fines on the 50 µm point filter, causing die streaks during comma coating onto PET or BOPP at 25–120 m/min. Compliance obligations include REACH registration for the finished article, EU 1935/2004 for food-contact materials, and FDA 21 CFR 175.105 for pressure-sensitive labels intended for dry food transport. Release tests include ASTM D3330 peel adhesion, ASTM D3654 static shear, and ASTM D3121 rolling-ball tack. The coated web passes through a multi-zone drying oven with lower explosive limit held below 25% and residual solvent controlled below 5 mg/m². Converted outputs include masking tape, surface protection film, paper labels, and double-sided assembly tape.
Thermoplastic road marking compounds incorporate Hydetech 5015 at 8–16 wt% of total compound weight to bind titanium dioxide, calcium carbonate filler, and glass beads while maintaining melt viscosity between 2,000–5,000 mPa·s at 210°C. The resin is melt-blended with hydrocarbon plasticizers and EVA or SIS polymer at 200–210°C in high-shear melt mixers; direct extrusion into molten stripe or slab casting is usually preceded by dry blending of pigments and glass beads to prevent pigment agglomeration. Drop-on glass beads with diameters of 300–600 µm are applied to the molten film at embedment depths of 50–60% to satisfy EN 1436 retroreflectivity and skid-resistance classes. AASHTO M249 sets compositional limits for alkyd-free hydrocarbon thermoplastics in North American jurisdictions. Loading above 16 wt% accelerates yellowing and smoke generation during prolonged holding at application temperature; loading below 8 wt% reduces bead retention and cohesive strength after freeze-thaw cycling. Published multi-vendor comparative data for Hydetech 5015 in low-temperature high-build markings is limited, so bath-hold stability trials at 210°C over 6 h are recommended before full-scale application. The resulting marking products comprise preformed thermoplastic markings, hot-spray municipal markings, and airport apron markings.
In solventborne polyamide/nitrocellulose gravure vehicles for high-speed packaging films, Hydetech 5015 is incorporated at 20–35 wt% of the nonvolatile vehicle to adjust pigment wetting, substrate adhesion on corona-treated LDPE, and film coefficient of friction. Pigment concentrates are first dispersed in a bead mill with 0.6–1.0 mm zirconia media at 3,000–5,000 rpm; the resin is added during letdown to avoid excessive grind viscosity. Printing viscosity is adjusted to 18–25 s DIN cup 4 before the ink enters a rotogravure press running at 150–250 m/min with solvent recovery. Regulatory compliance for food packaging uses the EUPIA exclusion list and Swiss Ordinance SR 817.023.21; ISO 2846-1 provides colorimetric consistency for process color sets. For printed layers that may contact food, EU 10/2011 overall migration testing is required on the finished package. Solvent retention after multi-zone drying is controlled below 2 mg/m² for low-odor snack packaging. End-use printed structures include snack packaging, paperboard folding carton inks, and general label and wrapper gravure printing.
Internal mixing of SBR/NR compounds in a 1.6 L Banbury-type mixer at 50–60 rpm introduces Hydetech 5015 at 3–8 phr after carbon black incorporation to avoid shielding filler surfaces and delaying incorporation. Loading above 8 phr produces cured-surface bloom within 72 h at 25°C and reduces tensile strength through resin-rich domains; loading below 3 phr gives insufficient green tack for plied calendering. Single-stage mixing is discharged at 140–150°C, followed by two-roll mill sheeting at 50–70°C and compression molding at 160°C for 8–12 min. Vulcanization kinetics measured by moving die rheometer at 160°C show T90 shifts of 0.5–1.5 min depending on sulfur donor ratio; the resin does not replace the need for tackifier-resin dispersion checks under ASTM D3182. RoHS 2011/65/EU, REACH, and AfPS GS 2019:01 PAK govern consumer rubber goods in the EU. Manufactured rubber articles include anti-vibration mounts, conveyor belts, shoe soles, molded seals, and tire tread compounds where green tack and filler wetting are production bottlenecks.
Measured under ASTM F1921, seal initiation temperature of cast PP heat-seal layers containing Hydetech 5015 at 5–15 wt% typically shows a 5–12°C decline relative to unmodified PP at seal pressures of 0.5 N/mm² and dwell times of 0.5 s. The coextruded cast film line operates at melt temperatures of 230–260°C, chill roll temperature 15–25°C, and winding tension set to avoid blocking because the resin shifts the blocking point and plate-out threshold. Loadings above 15 wt% increase haze and cause chill-roll plate-out; loadings below 5 wt% produce no measurable hot-tack change. EU 10/2011 overall migration limits of 10 mg/dm² and FDA 21 CFR 177.1520 apply when the film is used for food-contact packaging. Hot-tack windows of 0.5–2.0 N/25 mm are targeted in flow-pack and vertical form-fill-seal operations at sealing speeds above 40 cycles/min. The film structures are converted into cast polypropylene food wrap, flow-pack film, twist-wrap film, and heat-seal layers for BOPP laminations.
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Hydetech 5015 is positioned as a zinc-free hydraulic fluid in the ISO VG 15 viscosity class, intended for high-speed hydraulic circuits in which low viscous drag, fine filtration, and rapid valve response are required. The numerical suffix of the product code aligns with the ISO 3448 mid-point viscosity of 15.0 mm²/s at 40 °C, while the governing class window is 13.5–16.5 mm²/s. The product is supplied as a ready-to-use mineral hydraulic oil rather than a water-dilutable concentrate; therefore, it is not interchangeable with HFC water-glycol fluids covered by ISO 12922. In servo-pump-driven injection molding machines, the lower operating viscosity can reduce pressure loss in return lines, but that effect is reliably proportional to dynamic viscosity only in laminar-flow segments. The technical data sheet should be consulted for air-release behavior because low-viscosity fluids may retain entrained air longer under high shear. Published data for this specific configuration in high-inertia accumulator circuits is limited; system-level validation against the pump and valve manufacturer’s viscosity limits is required before use.
Under ISO 3448, the ISO VG 15 class includes fluids with kinematic viscosity at 40 °C between 13.5 mm²/s and 16.5 mm²/s. The critical distinction is not merely the mid-point viscosity but whether the fluid retains its working viscosity after shear and across varying sump temperatures. The relevant conformance framework is ISO 11158 HV, which requires a viscosity index of at least 140 for the HV category. If Hydetech 5015 is declared to meet HV requirements, the viscosity at 100 °C is stabilized by a shear-tolerant viscosity index improver, and the product is intended for circuits with broad temperature swings rather than a tightly controlled 40 °C sump. Industrial vane pumps generally require a minimum operating viscosity of approximately 16 mm²/s at warm conditions and a maximum cold-start viscosity in the range of 800 mm²/s, although the specific value is pump-specific. Hydetech 5015 is therefore more appropriately matched to axial-piston and gear pumps that accept a lower working viscosity without sacrificing piston-slipper film formation. The product’s viscosity at −20 °C should be obtained from the supplier and compared with the electric motor start-up curve before commissioning.
| Parameter | Test method | Class-level reference window | Reason for control |
|---|---|---|---|
| Kinematic viscosity at 40 °C | ISO 3104 / ASTM D445 | 13.5–16.5 mm²/s for ISO VG 15 | Determines pump lubrication and volumetric efficiency |
| Kinematic viscosity at 100 °C | ISO 3104 | Report value | Used in viscosity index calculation |
| Viscosity index | ISO 2909 | ≥ 140 for HV category | Maintains film thickness during temperature excursions |
| Shear stability after 20 h KRL | ISO 20763 / CEC L-45-A-99 | ≤ 15 % viscosity loss for HV claim | Prevents permanent loss of viscosity in high-shear pump clearances |
| Pour point | ISO 3016 / ASTM D5950 | Report value; cold-start limit depends on pump | Assesses cold-warehouse startability |
| Demulsibility | ISO 6614 | Report value; often ≤ 30 min for R&O-type mineral oils | Confirms free-water separation and tank control |
| Cleanliness after commissioning | ISO 4406 | 16/14/11 to 15/13/10 depending on servo-valve exposure | Limits particle-induced valve sticking and pump wear |
Oxidation stability is a separate operating boundary. In hydraulic reservoirs that remain above 60 °C, mineral-oil oxidation rate can approximately double with every 10 °C rise, compressing useful life to less than 1,000 h in poorly ventilated systems. For a product in this class, the supplier should provide oxidation data generated under ASTM D943 or ISO 4263. If the total acid number reaches 2.0 mg KOH/g or the KV40 increases by more than 10 %, the hydraulic fluid is outside the normal production window and should be changed. This threshold is a general mineral-oil control limit, not a product-specific claim. Reserve samples should be stored in sealed amber glass bottles at 10–25 °C to prevent moisture uptake and light-initiated oxidation.
The more common failure pattern observed on production axial-piston pumps filled with low-viscosity HV fluids is not immediate seizure but progressive film loss after permanent shear of the viscosity index improver. In a high-swash-angle axial-piston pump, the fluid experiences intense local shear at the piston-slipper interface and across the valve plate gap. If the polymer chains are mechanically degraded, the measured KV40 falls below 13.5 mm²/s, even though the fluid appears clear. For Hydetech 5015, the relevant shear-stability data should be generated according to ISO 20763, using either the tapered roller bearing method or the pump manufacturer’s reference shear method. A commonly used acceptance boundary in hydraulic component specifications is a retained KV40 of at least 13.0 mm²/s after 20 h of shear. This is not an optional guideline; warranty decisions for axial-piston pumps often depend on the in-service fluid remaining above the minimum allowed viscosity. Field teardown experience from variable-displacement pumps near 125 cm³/rev in plastics machinery indicates that viscosity loss below 10 % after 1,500 h correlates with acceptable valve plate condition. For new installations, oil samples should be taken at 500 h intervals during the first production period and then at 1,000 h intervals once shear-stable behavior is confirmed.
Mechanical shear is not the only source of viscosity shift. Water contamination, top-up with a different viscosity grade, or prolonged thermal stress can also move the fluid outside the 13.5–16.5 mm²/s class window. In a high-speed pump test loop, sub-5 µm particles generated by hose erosion or initial break-in can coat servo-valve spools and alter response time. Filtration to a target of ISO 4406 16/14/11 is not a one-time action; return-line particle counts should be trended with an automatic particle counter. For low-viscosity fluids, some servo-assisted systems require a stricter target of 15/13/10 because the thinner oil film can be less tolerant of particulate loading. The use of 3 µm absolute filter elements is common, but pressure differential across the element should be monitored. A differential increase of more than 0.8 bar across a cold filter can indicate water or oxidation deposits, not simply particulate load. This is an operational boundary, not evidence of product failure.
Because Hydetech 5015 is described as zinc-free, the antiwear mechanism does not depend on zinc dialkyldithiophosphate. The potential benefit is lower sulfated ash and reduced metallic residue in circuits with silver- or copper-alloy servo-valve components. The tradeoff is that zinc-free ashless antiwear systems may require careful formulation to match the vane-pump wear protection of conventional ZDDP-containing fluids. In high-cleanliness circuits, the absence of zinc-based deposits is relevant when the system operates with servo-valves and 3 µm filtration at a target of ISO 4406 16/14/11 or better. Filterability should be evaluated using ISO 13357-1 or ISO 13357-2; published data for this specific product in a 3 µm absolute filter element at 60 °C is limited, and the supplier’s filterability curve should be requested before start-up. Elastomer compatibility must be confirmed by ISO 6072 or ASTM D6546. Nitrile rubber, hydrogenated nitrile, and fluorocarbon seals are commonly used with petroleum hydraulic fluids; silicone-based elastomers are not generally recommended unless validated at the actual operating temperature and pressure.
On production lines, an ISO VG 15 hydraulic oil is less a general-purpose fluid and more a solution for high-speed pumps, low-drag actuators, and short-cycle dynamics. The product class is applied in machine tools, textile looms, servo-pump injection molding machines, and hydraulic elevator control systems. It is not a fire-resistant fluid and should not be used where ISO 12922 HFC water-glycol or ISO 15380 HEES ester fluids are required. In mobile equipment with elevated engine-compartment temperatures, oxidation control becomes more important because reservoir temperatures can exceed 80 °C for prolonged periods. The viscosity of a VG 15 fluid can reduce laminar return-line pressure drop relative to a VG 32 fluid at the same flow, but this relationship does not apply uniformly to valve losses, because valve pressure drop is not strictly linear with dynamic viscosity. Published data for this specific product configuration in mobile hydraulic applications is limited; the product should not be used outside the OEM fluid specification without controlled field testing.
| Fluid class | Standard framework | Zinc content | Fire resistance | Primary limitation |
|---|---|---|---|---|
| Zinc-free HV VG 15 class intended for Hydetech 5015 | ISO 11158 HV | Zinc-free | None; petroleum oil | Not for fire-resistant HFC or biodegradable HEES applications |
| Conventional HM VG 15 | ISO 11158 HM / DIN 51524-2 | Typically contains ZDDP | None; petroleum oil | Higher metallic ash residue; less attractive for some environmental reporting limits |
| HFC water glycol VG 15 | ISO 12922 | Zinc-free | Fire-resistant | High water content requires compatible seals, pumps, and low-temperature management |
| HEES biodegradable ester VG 15 | ISO 15380 | Zinc-free | None; ester-based | Water tolerance and cost may vary; seal compatibility must be verified |
Hydetech 5015 differs from conventional ISO VG 15 R&O oils by combining an HV viscosity index, zinc-free chemistry, and a low-temperature pumpability envelope. The chemical difference does not necessarily appear as a dramatic change in pour point or flash point; it appears in the comparative response to water contamination, oxidation, and filter plugging. The relevant supporting data typically includes sludge-free life under modified TOST conditions, air-release values according to ASTM D3427, and wear rates under ASTM D7043 using a Vickers 104C vane pump. The product should not be compared with HFC water-glycol fluids on fire-resistance grounds, because it does not carry an ISO 12922 approval. It should also not be treated as a direct substitute for HEES biodegradable ester fluids where environmental sensitivity requires ISO 15380 compliance. In operations where trace-metal reporting is restricted by effluent permits, the absence of zinc may reduce analytical burden, but the user must verify that the ashless additive package does not contain restricted amines or phenolic compounds under local regulation.
An ISO VG 15 fluid may be selected for indoor industrial machinery, but cold-warehouse startability is governed by low-temperature viscosity and pour point rather than by the 40 °C class alone. For Hydetech 5015, the relevant cold-start measurement is the Brookfield viscosity at −20 °C, which indicates whether the electric motor can accelerate the pump without cavitation. A practical upper cold-start viscosity for many fixed-displacement gear pumps is 1,500 mPa·s, but this limit is manufacturer-specific. At the same time, lower-viscosity fluids create a thinner hydrodynamic film at the piston-slipper contact, so boundary-lubrication conditions become more important. The zinc-free antiwear package should therefore be evaluated using a vane-pump wear test such as ASTM D7043 or DIN 51389-2. These tests do not perfectly reproduce axial-piston pump sliding contact geometry, but they provide a repeatable bench comparison against conventional ZDDP-containing HM fluids. Published data for this specific product configuration under simultaneous cold-start and high-speed wear cycles is limited; validation in a controlled test rig fitted with a low-temperature start-chamber is recommended.
Water contamination limits for mineral hydraulic oils are also more important at lower viscosity because the fluid film is thinner and the emulsion behavior can differ. A general operating limit for vane pumps is 500 ppm water, while servo-valve systems may require 200 ppm or less. If free water is visible, the product should not be kept in service merely because the demulsibility value is acceptable; the circuit should be drained, cleaned, and refilled after the water source is corrected. Off-line kidney-loop filtration units with 3 µm absolute or finer elements are routinely installed on production lines to control both particulate and moisture levels. The reservoir should be sized for at least 2.5 times the maximum pump flow per minute, and return-line flow should discharge below the liquid surface to limit air entrainment. These commissioning and maintenance practices apply to the broader class of low-viscosity mineral hydraulic oils and are not unique guarantees for Hydetech 5015.
