UIP INTERNATIONAL

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SHEET RUBBER PRODUCTS

UIP International Inc, offers a full line of commercial grade sheet rubber products which are manufactured
under strict guidelines for exceptional quality.  Large Inventories of elastomers are available from stock
including Neoprene, Red Rubber, CI Sheet, EPDM, Nitrile, White FDA Sheet, Pure Gum, CSM, Butyl and
Viton®.
Note:
• All sheet packing sold in full one piece roll quantities, except Viton®
• Price is per pound for actual shipping weight, however, square foot, square yard, lineal foot and
lineal yard prices can be provided.
• Freight: F.O.B. Houston; $2500 freight allowed or $3500 combination orders (Sheet Rubber,
Industrial Hose and/or AIC Couplings).
• Made to RMA’s specifications
• All orders confirmed back to customer for error-free shipping
• Drop shipments sent to your customer blind with your packing list when required
Special products, not stocked, can be quoted for a factory order. For examples: special sizes,
elastomers, duros, special specs and/or molded products.

Storage of Rubber Products

Rubber products in storage can be adversely affected by the following items:
• Temperature
• Humidity
• Ozone
• Sunlight
• Oils
• Solvents
• Corrosive liquids & fumes
• Insects & rodents
• Radiation

The warehousing area should be relatively cool, dark and free from dampness and mildew. All items
should be stored on a first-in, first-out basis, since even under these conditions, an unusual length of
shelf life could deteriorate certain products.
The ideal storage temperature for rubber products is 50° to 70°F with a maximum limit of 100°F. If stored
below 32°F, some products may become stiff and should be warmed before being placed into service.
Rubber products should not be stored near sources of heat, such as radiators and base heaters. Rubber
products should not be stored under conditions of high or low humidity.
To protect against the adverse effects of ozone, rubber products should not be stored near electrical
equipment that may generate ozone and should not be stored for any lengthy period in geographical
areas of known high ozone. Conditions of direct and reflected sunlight should also be avoided.
Whenever feasible, rubber products should be stored in their original shipping containers, especially
when such containers are wooden crates or cardboard cartons, since this will provide protection against
the deteriorating effects of oils, solvents, and corrosive liquids, and will also afford some protection
against sunlight.  Certain rodents and insects thrive on rubber products, so adequate protection should be provided from them.

Rubbers or Elastomers

Rubbers or elastomers are mixed with various chemicals in order to provide the reinforcement and curing
ingredients required to produce the physical properties necessary for the service conditions.

Polymers most commonly used in sheet rubber

ASTM

Designation D1418-79

Common
Name

Composition

General Properties

 

NR

 

Natural

 

Isoprene, natural

Excellent physical properties including abrasion and low temperature resistance. Poor resistance to petroleum-based fluids.

IR

Polyisoprene Isoprene, synthetic

Similar to natural rubber

 

SBR

 

SBR

 

Styrene-butadiene

Good physical properties and abrasion resistance. Poor resistance to petroleum based-fluids.

 

CR

 

Neoprene

 

Chloroprene

Good weathering resistance. Flame retarding. Moderate resistance to petroleum-based fluids.

Good physical properties.

 

NBR

 

Buna N

 

Nitrile-butadiene

Excellent resistance to petroleum-based fluids.

Good physical properties

 

 

IIR

 

 

Butyl

 

 

Isobutene-Isoprene

Very good weathering resistance. Excellent dielectric properties. Low permeability to air. Good physical properties. Poor resistance to petroleum-based fluids.

 

EPDM EPM

 

Ethylene-propylene

rubbers

Ethylene-propylene-

diene

Ethylene-propylene

Excellent ozone, chemical, and aging resistance. Poor resistance to petroleum-based fluids.

 

FPM or FKM

 

Viton, Flourel

 

Hexaflouro-propylene- vinyl-idene fluoride

Excellent oil and air resistance at both high and low temperatures. Very good chemical resistance.

From Rubber Manufacturers Association Sheet Rubber Handbook, 3rd Edition

 

General properties of common polymers used in sheet rubber

 

Neoprene

 

Nitrile

 

EPDM

 

SBR

 

CI

 

Pure Gum

 

Silicone

 

Viton

 

CSM

Heat Aging Good Good Excellent Good Good Good Excellent Excellent Good
Abrasion Resistance Excellent Excellent Very

Good

Good Good Excellent Poor Fair Fair
Compression Set Fair Fair Fair Good Good Good Fair Good Good
Resilience Excellent Good Good Good Good Outstanding Fair Fair Fair
Tear Good Good Good Fair Good Good Good Fair Fair
Flame

Resistance

Excellent Poor Very Poor Very Poor Very Poor Very Poor Fair Good Good
Weathering Very

Good

Fair Excellent Fair Fair Fair Good Excellent Excellent
Ozone Resistance Very

Good

Very Poor Good Fair Fair Poor Good Excellent Excellent
Gas Permeability Resistance Good Good Good Good Good Good Poor Poor Poor
Oil Resistance Good Very

Good

Very Poor Poor Poor Very Poor Fair Good Fair
Gas Resistance Good Excellent Very Poor Poor Poor Very Poor Poor Poor Poor
Acid Resistance Good Good Good Fair Fair Good Poor Good Good
Alkalai Resistance Good Good Good Fair Fair Good Poor Good Good

Sheet Rubber Commercial Tolerances

(From Rubber Manufacturers Association Sheet Rubber Handbook, Second Edition)

Nominal Thickness Inches (up to but not including)

Fractions

Decimals

Tolerances (inches)

under 1/32

under .031

.010

1/32 to 1/16

.031 to 062

.012

1/16 to 1/8

.062 to .125

.016

1/8 to 3/16

.125 to .187

.020

3/16 to 3/8

.187 to .375

.031

3/8 to 9/16

.375 to .562

.047

9/16 to 3/4

.562 to .750

.062

3/4 to 1

.750 to 1.00

.094

1 and over

1.00 and over

10%

Please Note!

The general properties shown in the chart on the general properties chart are not intended to be used to make final choices for a specific application.  Exposure to heat, sunlight, chemicals, ozone and oils, as well as pressure, tension, binding, stretching and folding, will affect the performance of a rubber product.

Suitability must be determined by a qualified person.