IIR-532



Composition
Copolymer rubber of isobutylene and isoprene

Basic Properties

 Unit

Standard

Test Method

Product Form

/

Off-white bales

 Visual

Mooney Viscosity (ML1+8,125℃) 

MU

51±5

GB/T1232.1

Volatiles

wt%

≤ 0.3

GB/T 24131.2

Unsaturation

mol%

1.7±2

Q/XH-FX 029

Total Ash

wt%

≤ 0.3

GB/T 4498.1

Antioxidant (Non-staining)

Wt%

≥0.03

Q/XH-FX 030-

Cure Characteristics

 Unit

Standard

Test Method

FL 

dN·m

3.3±0.9

GB/T16584

Moving Die Rheometer

(MDR)

160℃ x 40min, 0.5°arc

FH

dN·m

16.8±1.4

ts1

min

2.0±1.0

tc50

min

5.3±2.0

tc90

min

20.4±3.3

Test Formulation (phr)  IIR-532 100, IRB#8 50, ZnO 3, TMTD 1, Sulfur 1.75
 
Applications 
Regular Butyl Rubber IIR-532 has superior air impermeability, outstanding performance of
heat-resistance, chemical corrosion-resistance, thermal aging resistance, and good curing
performance. It can be widely used for inner tubes of tires, tire envelopes, medical stoppers, sealing
materials, ball bladders, building sealants, electrical condensers, etc.
Safety & Toxicity 
IIR-532 is a kind of elastomer with stable performances. It is harmless and not dangerous for humans,
plants or animals. Please refer to SDS for relevant safety data and reference.
Packaging 
Bale Weight (KG/Bale)  Pallet  Pallet Weight (KG)  Wrapping Film
25±0.25  Plywood Box  1050 (42 Bales)
Modified PE  25±0.25  Metal Box  1200 (48 Bales)
34±0.34  Metal Box  1224 (36 Bales)
Storage Life & Conditions 
Three years from production date, store & transport below 35℃, no exposure to sunlight.


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