Rubber
We carry Garlock Rubber Technologies rubber sheeting.
Some of our more popular products are listed below.
Non-Oil-Resistant Sheet:
Style #50 - A cloth-finished, drum-cured sheet. It is an
excellent, low-cost, flange gasket material. ASTM D-1330 Gr. II
Style #563 - A EDPM sheet that provides outstanding resistance
to weathering, ozone and UV exposure. It provides excellent chemical
resistance and dynamic properties. ASTM D2000-3BA-615-B13-C12
Commercial Grade Neoprene Sheet:
Style #264 - A medium-hard, good quality neoprene sheet. ASTM D2000-BC-608
Nitrile Oil-Resistant Sheet:
Style #363 - A good quality, oil-resistant nitrile sheet.
ASTM D2000-BF-610
Food Grade Sheet:
Style #362 - A Nitrile sheet made from FDA-approved ingredients
per Z1 CFR 177.2600. It also meets "3A Sanitary Standards for
Multiple-Use Rubber and Rubber-Like Materials used as product contact surfaces
in dairy equipment," Number 18-01, Class III and IV. It has good
resistance to oily and greasy food products and abrasion. This sheet is
non-marking. ASTM D2000-2BF-615-E034
High Performance Sheet Rubber - 500 Series:
Style #506 - Sheet rubber, made with HYPALON (chlorosulfonated
polyethylene) synthetic rubber, is a high-performance product exhibiting
excellent resistance to ozone, weathering, heat, certain chemicals and various
oils. ASTM D2000-CE-618
Style #509 - A branded, chlorobutyl sheet rubber product, also
referred to as "Butyl" sheet. ASTM D2000-CA-615
A note about ASTM Specifications:
Many manufacturers use ASTM standards to describe sheet rubber products.
Without them, the buy has no was of determining the quality of the product he
or she is receiving or how it can be expected to perform in service. When the
distributor and/or end user needs to know how a sheet is going to react under given
conditions, a salesperson can use ASTM specifications as a sales tool.
Elastomers
and Performance Characteristics
|
ELASTOMER TYPE |
PROS |
CONS |
|
Butyl
IIR
(isobutylene-isoprene) |
Excellent
resistance to acids and alkalis.
Excellent
weathering properties and heat resistance.
Excellent
electrical resistance. Low permeability to air. |
Poor
resistance to fuels, solvents, oils and hydrocarbons. Cold weather
properties are fair. |
|
CPE
(Chlorinated
Polyethylene) |
Excellent
oxidation resistance. Good oil resistance, heat resistance, ozone resistance
and weather resistance. Fair resistance to ketones and ethers. |
Poor
cold weather properties. |
|
HYPALON
(Chlorosulfonated
Polyethylene)
(HYPALON
is a registered trademark of DuPont Dow Elastomers) |
Good
oil resistance, ozone resistance, heat resistance and weather resistance.
Resists corrosive chemicals. |
Fair
resistance to ketones and ethers. Tear resistance is fair. Poor resistance
to aldehydes, aromatic solvents, esters, and chlorinated solvents. |
|
EPDM
(ethylene-propylene
diene) |
Excellent
resistance to ozone, sunlight and oxygen. Excellent resistance to acids,
alkalis, and ketones. Excellent heat resistance and aging. |
Poor
resistance to fuels and oils. |
|
Fluoroelastomer
(VITON
fluoroelastomer is a registered trademark of DuPont Dow Elastomers) |
Excellent
resistance to heat and oil combinations: hot greases found in engines and
compressors. Excellent resistance to a wide range of concentrated acids. |
High
cost of fluoroelastomer may limit usage to extreme applications.
Resilience is low and tear strength is limited unless certain compounding
steps are taken to improve it. Impact resistance is fair. |
|
SBR
(Styrene
butadiene) |
Good
abrasion resistance and excellent impact and cut-and-gouge resistance. Can
be compounded for use as skirtboard rubber, lining rubber, conveyor belt
covers, tires and other extremely demanding applications. Used as gasket
material and as an economical general purpose sheet. |
Not
suited for use with oils, fuels, solvents, or hydraulic fluids. |
|
Silicone |
Excellent
properties for both hot and cold temperature extremes; excellent
weathering properties; resists ozone and oxygen attack. Long service life
can be expected at 200F to 400F (90C to 204C) |
Poor
resistance to oils, fuels, and hydrocarbons. Fair performance when exposed
to acids, alkalis and solvents. Physical properties (tensile, abrasion,
tear and cut growth) are fair. |
|
Natural
Rubber
NR
(Gum) |
Good
gasket material due to excellent physical properties such as resilience,
tear strength and wear resistance. Natural rubber is used effectively as
sand and shot blast curtain material because of it's high abrasion
resistance and resilience.` |
Deteriorates
when exposed to oils, fuels, solvents, and hydraulic fluids. Poor
resistance to sunlight, ozone and oxygen. |
|
Neoprene
CR
(chloroprene) |
Good
oil- and petroleum-based solvent resistance. Good weather and ozone
resistance. Neoprene may be blended with SBR rubber to achieve an
economically priced sheet for moderately oil resistant applications. |
Poor
resistance to degreaser solvents. Content levels of neoprene can vary
widely. Application problems may occur when using blended or commercial
grades of neoprene sheet of unknown quality levels in contact with oil,
solvents and fuels.
Where
good oil or fuel resistance is required, the fabricator and user need to
specify one of the following:
-A
known manufacturer's product
-An
ASTM call-out
-A
military specification
-An
ASTM-specified oil resistance level based on an ASTM
test (e.g. oil swell) |
|
Nitrile
(butadiene-acrylonitrile) |
Excellent
resistance to oils, solvents and fuels. Resistant to a broader range of
aromatic hydrocarbons than neoprene. Nitrile may be blended with SBR
rubber to achieve an economically priced sheet for moderately oil
resistant applications. |
Application
problems occur while using nitrile of unknown quality levels in extreme
oil resistance applications or in contact with fuels or solvents. Contents
of nitrile can vary widely.
Where
oil or fuel resistance is required, the fabricator and user need to
specify one of the following:
-A
known manufacturer's product
-An
ASTM call-out
-A
military specification
-An
ASTM-specified oil resistance level based on an ASTM
test (e.g. oil swell) |
The above information has been supplied by Garlock, Inc.
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