Low Pressure RIM Systems

Sika offers a wide range of low pressure RIM systems which are close to thermoplastics aspect such as PP, PE, ABS, soft PVC, rubber-like, etc.

Our 2 components polyurethane RIM systems are well known for its low viscosity, high impact resistance, high temperature resistance, long pot life for rapid production of large parts and small to medium series parts.

RIM 631

RIM 826

RIM 836

RIM 975

RIM 976

Biresin RG53

Biresin RG53 FR

Biresin RG57 FR

Overview – Low Pressure RIM Systems

Product	Description	Colour	Application	Density(g/cm³)	Pot life (sec)	Viscosity (mPa.s)	Shore Hardness	Tensile Strength (MPa)	Thermal resistance (°C)
RIM 631	Fast curing and demoulding time, good flowability, flexible	Black	Production of flexible parts, sealings, bellows and any other rubber like parts	1.05-1.09	50-70	1300-1900	73 A	7	–
RIM 826	Good temperature resistance, good impact resistance, fast curing with good flowability	Black	Production of technical parts require good impact resistance, housings and covers, automotive front and interior panels	1.12	80-100	800-1200	73 D	28	95
RIM 836	Semi rigid and good impact resistance, allow to cast by hand, 2K machine or rotational moulding for large parts	Beige	To produce housings and covers or any technical parts require good impact resistance	1.25	9-11 (mins)	1000	75 D	23	95
RIM 975	Very high temperature resistance up to 150°C, good impact resistance, easy to process and paint	Black	Manufacture of covers and housings, under-the-hood parts, air cleaner and heater system ducting	1.20	38-42	2000	75 D	32	150
RIM 976		Black		1.18	35-40	1500	80 D	50	150
Biresin RG53 / RG500	Short demoulding time, good flowability, fast curing	Beige or Black	Manufacture of housings and covers of medium stiffness	1.20	60	2200	78 D	38	120
Biresin RG53 / RG530	Short demoulding time, good flowability, fast curing	Beige or Black	Manufacture of housings and covers of medium stiffness	1.20	60	2200	80 D	38	110
Biresin RG53 FR	Flame retardant with UL 94 V0 certified, high strength and stiffness	Beige or Black	Manufacture of housings and covers of high stiffness	1.27	75	3500	84 D	45	110
Biresin RG57 FR		Beige or Black	Manufacture of housings and covers of high stiffness	1.30	55	3800	80 D	38	90

Overview - Low Pressure RIM Systems