Damping Fluid: Density 0.97 g/cm³, Viscosity 3000 cSt at 25°C

Component Specifications

Definition

A high-viscosity, temperature-stable silicone fluid formulated specifically for hydraulic damping applications in soft-close mechanisms. It provides consistent resistance to motion through internal shear forces, ensuring smooth deceleration without impact or noise.

Working Principle

Operates on the principle of viscous shear damping: as the damper piston moves through the fluid, internal friction converts kinetic energy into heat, creating controlled resistance that slows motion proportionally to velocity.

Materials

Polydimethylsiloxane (PDMS) silicone base with viscosity modifiers and anti-wear additives; typically ISO VG 1000-5000 grade; operating temperature range: -40°C to 150°C.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Color	Clear
Density	0.97 g/cm³
Viscosity	3000 cSt at 25°C
Pour Point	-50°C
Flash Point	>300°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 3448, DIN 51519

Parent Products

This component is used in the following industrial products

Soft-Close Damper

A hydraulic or pneumatic damping device that slows and quiets the final closing motion of a drawer.

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Engineering Analysis

Risks & Mitigation

Viscosity breakdown due to contamination
Leakage causing loss of damping effect
Incompatibility with seal materials leading to swelling or degradation

FMEA Triads

Trigger: Fluid contamination with particulates
Failure: Increased wear on piston seals and inconsistent damping
Mitigation: Use filtered filling systems and regular maintenance checks

Trigger: Exposure to extreme temperatures beyond specification
Failure: Viscosity change leading to erratic damping performance
Mitigation: Select fluid with appropriate temperature range and install thermal protection

Industrial Ecosystem

Compatible With

Soft-close dampers, hydraulic door closers, cabinet dampers, industrial damping cylinders

Typical Suppliers & Equivalents

Dow Corning 200 Fluid, Shin-Etsu KF-96, Momentive SF96

Compliance & Inspection

Tolerance

±10% viscosity variation across operating temperature range

Test Method

ASTM D445 for viscosity, ASTM D92 for flash point

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

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Supplier transparency

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Manufacturers of Damping Fluid

Manufacturer profiles associated with Damping Fluid.

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Frequently Asked Questions

What is the primary function of damping fluid in soft-close dampers?

To provide smooth, controlled deceleration by converting kinetic energy into heat through viscous resistance, preventing slamming or impact.

How does temperature affect damping fluid performance?

High-quality silicone-based fluids maintain stable viscosity across a wide temperature range (-40°C to 150°C), ensuring consistent damping performance in varying environments.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Damping Fluid