IIR-532

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
F_L	dN·m	3.3±0.9	GB/T16584 Moving Die Rheometer (MDR) 160℃ x 40min, 0.5°arc
F_H	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.