ButylRubber,IIR

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ButylRubber,IIR

Product Description:

IIR (Isobutylene Isoprene Rubber), a synthetic rubber with exceptional airtightness, heat resistance, and chemical stability, is ideal for tires, gaskets, and sealing applications requiring long-term performance in harsh environments.

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Product Details

IIR rubber (Isobutylene Isoprene Rubber) stands out for its superior air retention—critical for tire inner liners—and strong resistance to heat, ozone, and chemicals. Its low gas permeability and flexibility at low temperatures make it a top choice for industrial seals, gaskets, and automotive components, ensuring reliable performance in diverse operating conditions.

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Customization service are available, let us know your requirements, we will produce for you!

IIR
Item	Unit	IIR1953
Item	Unit	Premium Grade	Qualified Grade	Customized Grade
Appearance		White Solid
Mooney Viscosity	ML(1+8)125℃	51.0±3.0	51.0±5.0	51.0±5.0
Unsaturated	(Mole Fraction)%	1.70	±0.20	1.70±0.30
Volatile matter	(Mass Fraction/Wt)%	≤0.30	≤0.50	≤0.50
Ash Content	(Mass Fraction/Wt)%	≤0.20
FH	dN ·m	16.8±1.4	16.8±1.4	>18.20
FL	dN ·m	3.3±0.9	3.3±0.9	3.6±0.9
Ts1	min	2.0±1.0
T50	min	5.3±2.0
T90	min	20.4±3.3
Stabilizer	(Mass Fraction/Wt)%	≤0.60		≤0.60
Antioxidant	(Mass Fraction/Wt)%	≥0.03		≥0.03

BIIR
Item	Unit	Grade
Item	Unit	BIIR2828	BIIR2249	BIIR2332
Appearance		White to Beige Solid
Mooney Viscosity	ML(1+8)125℃	32.0±4.0	46.0±4.0	32.0±4.0
Bromine Content	(Mass Fraction/Wt)%	2.00 ±0.20		2.10±0.20
Volatile matter	(Mass Fraction/Wt)%	≤0.50
Ash Content	(Mass Fraction/Wt)%	≤0.70
FH	dN ·m	6.9±2.0	8.2±2.0	7.5±2.0
FL	dN ·m	2.0±1.0	2.7±1.0	2.5±1.0
Ts1	min	2.9±1.2	3.8±1.2	≥1.5
T50	min	5.3±1.5	6.0±1.5	4.3±1.5
T90	min	8.4±2.0	9.0±2.0	7.4±2.0
Stabilizer	(Mass Fraction/Wt)%	1.2-1.6		1.0-1.6
Antioxidant	(Mass Fraction/Wt)%	≥0.03		≥0.02

CIIR
Item	Unit	Grade
Item	Unit	CIIR1338
Appearance		White to Beige Solid
Mooney Viscosity	ML(1+8)125℃	38.0±4.0
Chlrine Content	(Mass Fraction/Wt)%	1.25 ±0.10
Volatile matter	(Mass Fraction/Wt)%	≤0.50
Ash Content	(Mass Fraction/Wt)%	≤0.50
FH	dN ·m	8.0±1.2
FL	dN ·m	2.5±0.8
Ts1	min	1.2±0.8
T50	min	3.0±1.5
T90	min	8.0±2.5
Antioxidant	(Mass Fraction/Wt)%	≥0.03

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