From: Subject: Selection of Material Date: Wed, 10 Dec 2008 13:06:21 +0530 MIME-Version: 1.0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.rubberking.com.tw/Selection%20of%20Material-0622.htm X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 Selection of = Material

Commercial=20
Name

Acrylic=20
Rubber

Polyboron
Rubber

Epichlorohydrin
Rubber

Butyl
Rubber

Hydrogenated
Rubber

Natural
Rubber

Acryonitril
Butadiene
Rubber

Chloroprene
Rubber

Styrene
Butadiene
Rubber

Silicone
Rubber

EPDM Ethyiene-propylene-diene
Rubber

Chlorosulphonated
Polyethylene

Fluorinated
Rubber

International designation

ACM

PNR

ECO

IIR

HNBR

NR

NBR

CR
NEOPRENE

SBR

SI

EPDM

CSM
HYPALON

FPM
VITON

Hardness=20 available

50-80 = Shore=20 A

10-80 = Shore=20 A

50-90 = Shore=20 A

40-85 = Shore=20 A

40-90 = Shore=20 A

25-95 = Shore=20 A

25-95 = Shore=20 A

30-90 = Shore=20 A

35-95 = Shore=20 A

40-80 = Shore=20 A

30-90 = Shore=20 A

50-95 = Shore=20 A

65-90 = Shore=20 A

Resistance to=20 temperatures

-35=A2XC to=20 +175=A2XC

-40=A2XC to=20 +80=A2XC

-40=A2XC to=20 +175=A2XC

-40=A2XC to=20 +130=A2XC

-40=A2XC to=20 +175=A2XC

-40=A2XC to=20 +80=A2XC

-40=A2XC to=20 +80=A2XC

-30=A2XC to=20 +120=A2XC

-30=A2XC to=20 +110=A2XC

-40=A2XC to=20 +150=A2XC

-40=A2XC to=20 +150=A2XC

-40=A2XC to=20 +120=A2XC

-30=A2XC to=20 +225=A2XC

Short-Time=20 Peak=20 temperature

+200=A2XC

+100=A2XC

+150=A2XC

+150=A2XC

+100=A2XC

+100=A2XC

up to=20 +160=A2XC

up to=20 +150=A2XC

up to=20 +150=A2XC

up to=20 +225=A2XC

up to=20 +180=A2XC

up to=20 +175=A2XC

up to=20 +350=A2XC

Tensile strength = in=20 kp/sq.cm(N/sq.mm)

170 = (17)

170 = (17)

170 = (17)

300 = (30)

250 = (25)

250 = (25)

250 = (25)

250 = (25)

80 = (8)

200 = (20)

180 = (18)

200 = (20)

Tensile Elongation in = %

up to=20 350

300 to=20 700

150 to=20 500

400 to=20 800

150 to=20 600

800

500

450

450

250

450

300

400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Properties

 

 

 

 

 

 

 

 

 

 

 

 

 

Abrasion

moderate

good

moderate

good

very=20 good

good

very=20 good

good =

very=20 good

moderate

good

moderate

moderate

Flex cracking=20 resistance

moderate

moderate

good

moderate

very=20 good

good

moderate

very=20 good

good

bad

very=20 good

good

good

Flexibility

low

as=20 required

moderate

slight

good

excellent

good

good =

good

good

good

good

moderate

Notch = strength/structure=20 strength

-

moderate

good

good

good

excellent

good

good =

good

moderate

moderate

good

almost=20 good

Light=20 resistance

good

good

good

very=20 good

good

bad

bad

very=20 good

moderate

excellent

excellent

excellent

excellent

Oxidizing=20 resistance

very=20 good

good

good

very=20 good

good

moderate

moderate

good =

moderate

very=20 good

excellent

excellent

excellent

Ozone=20 resistance

very=20 good

good

very=20 good

very=20 good

good

moderate

moderate

very=20 good

moderate

excellent

excellent

excellent

excellent

Wear-and-tear=20 resistance

good

good

-

good

good

very=20 good

very=20 good

very=20 good

very=20 good

bad

good

good

almost=20 good

Weathering=20 effect

very=20 good

good

good

very=20 good

good

good

moderate

very=20 good

good

excellent

excellent

excellent

excellent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Resistance to=A1K

 

 

 

 

 

 

 

 

 

 

 

 

 

Lyes

not=20 suitable

moderate

bad

very=20 good

good

good

good

very=20 good

good

not=20 suitable

excellent

very=20 good

very=20 good

Petrol

not=20 suitable

not=20 suitable

good

not=20 suitable

good

not=20 suitable

excellent

moderate

not=20 suitable

not=20 suitable

not=20 suitable

moderate

excellent

Benzole

not=20 suitable

not=20 suitable

good

not=20 suitable

moderate

not=20 suitable

bad

not=20 suitable

not=20 suitable

not=20 suitable

not=20 suitable

not=20 suitable

good

Foodstuffs = *

not=20 suitable

not=20 suitable

not=20 suitable

suitable

not=20 suitable

suitable

suitable

suitable

suitable

excellently=20 suitable

suitable

suitable

not=20 suitable

Solvents.aliphatic

bad

not=20 suitable

good

not=20 suitable

very=20 good

not=20 suitable

very=20 good

moderate

not=20 suitable

not=20 suitable

bad

moderate

very=20 good

Solvents.aromatic

bad

not=20 suitable

good

not=20 suitable

conditional

not=20 suitable

conditional

moderate

not=20 suitable

not=20 suitable

not=20 suitable

moderate

good

Solvents.halogene

bad

not=20 suitable

not=20 suitable

not=20 suitable

conditional

not=20 suitable

bad

bad

not=20 suitable

not=20 suitable

not=20 suitable

moderate

good

Oils and=20 greases

very=20 good

conditional

very=20 good

not=20 suitable

very=20 good

not=20 suitable

excellent

good

not=20 suitable

good

bad

good

good

Acids

not=20 suitable

moderate

moderate

very=20 good

moderate = (conditional)

conditional

conditional

good

conditional

not=20 suitable

very=20 good

very=20 good

very=20 good

Water

good

excellent

moderate

good

very=20 good

good

good

very=20 good

very=20 good

good

very=20 good

good

good

* special = formulations=20 only

 

 

 

 

 

 

 

 

 

 

 

 

 

The=20 properties presented hereby are for guidance only, and are = affected by=20 temperature, concentration, etc, in specific applications and = cannot be=20 guaranteed

 

 

 

 

 

 

 

 

160 = (16)