
MARINESURPLUS.COM
1/32" Comm. Grade Buna-N Rubber Sheet, 12"x12", Black, 50A
Description
A versatile, durable rubber sheet crafted from Buna-N (nitrile) elastomer, designed for sealing, gasketing, padding, or vibration isolation in industrial, automotive, and general-use applications.
Key Specifications & Features
Property |
Value |
Material / Type |
Buna-N (Nitrile Rubber) |
Thickness |
1/32″ (≈ 0.030 in) |
Sheet Size |
12″ × 12″ (square) |
Shore Hardness |
50A (medium hardness) |
Color |
Black |
Tensile Strength |
Typical for commercial-grade nitrile (varies by supplier) |
Elongation at Break |
Moderate (reflective of typical nitrile sheet) |
Compression Set / Resilience |
Good for sealing & gasket use |
Oil / Fuel Resistance |
Buna-N is resistant to many fuels, oils, greases, and hydraulic fluids |
Temperature Range |
Approximately –40 °C to +120 °C (typical for Buna-N; check supplier spec) |
Benefits & Applications
-
Excellent Oil & Fuel Resistance
Buna-N is well-suited for environments exposed to petroleum products, lubricants, and many hydraulic fluids—making this sheet ideal for gaskets or seals in engines, pumps, or fluid systems. -
Flexible & Resilient
At 50A hardness, it offers a balance between flexibility and firmness: soft enough to conform under light pressure, but firm enough to maintain its shape. -
Thin & Compact for Precision Fitting
The 1/32″ thickness enables fine adjustment in clearance or matching tight tolerances without bulk. -
Good for Seals, Gaskets & Liners
Use as custom gaskets, sealing pads, bearing isolators, vibration dampeners, or protective liners. -
Cut-to-Size & Easy to Work
Can be cut, punched, laminated, or shaped using standard tools (e.g. utility knives, shears, die cutting).
Usage & Handling Tips
-
Surface Prep
Clean both mating surfaces before placing the sheet to ensure proper sealing performance. -
Cut Edges Cleanly
Use a sharp blade or die to avoid jagged edges which may compromise sealing or allow leaks. -
Adhesive Bonding
Use compatible adhesives (rubber cement, contact adhesive, or vulcanizing cement recommended for nitrile) if bonding to surfaces or backing plates. -
Compression Guidelines
Avoid over-compression, which can lead to permanent deformation or extrusion—maintain recommended gasket compression levels. -
Storage
Store flat, in a cool, dry place, away from direct sunlight, ozone, and radical sources (e.g. strong oxidizers) to prevent aging. -
Verify Supplier Data
Because “commercial-grade” specifications vary, always check the product sheet from your supplier for precise tensile strength, elongation, temperature limits, and chemical compatibility.