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General Types

They include three types: epoxy, polyurethane, and silicone, predominantly with double-component . They can be categorized into two types based on the curing method: ambient curing and heat curing. They can also be divided in various types based on their performance, such as flame retardant, thermal conductive, and low modulus. Rongtai Technology is a professional epoxy resin supplier and wholesaler for electric insulating.

Product Code	Base Resin	Unique Characteristics	Viscosity @25℃ mPa·s	Mix Ratio	Cure Schedule	Flame retardant Grade	Thermal Conductivity（W/m·K）	Hardness	Thermal Class
R-381-1	Epoxy Resin	Medium temperature curing, excellent liquidity, good flame retardant, high strength	2000-8000	100:25~35	85℃@6h/105℃@2h	V-0	0.4-0.6	80-90D	130℃
R-381-11	Epoxy Resin	Double filled medium temperature cure, excellent liquidity, flame retardant, high strength, low CTE(Coefficient of Thermal Expansion)	25000-45000	100:100	85℃@6h/105℃@2h	V-0	0.6	90D	155℃
R-381-2	Epoxy Resin	Medium viscosity, fast curing, good adhesion, anti-crack	150000-250000	100:18~20	100℃@0.5h/23℃@12h	V-0	0.6	80D	155℃
R-381-3	Epoxy Resin	Low viscosity, anti-crack, low shrinkage, shiny surface	8000-30000	100:20~25	23℃@12h/80℃@1h	V-0	0.5	80D	155℃
R-381-3 Extra Clear	Epoxy Resin	Non-filled and self-drying products, good for water pump cable sealing	2000-3000	100:30~40	23℃@2h	——	——	75D	130℃
R-381-35	Epoxy Resin	Non-filled and self-drying product ,high stiffness ,good for water pump cable sealing	2300-3300	100:45~50	23℃@2h	——	——	80D	130℃
R-381-4	Epoxy Resin	High cost-effectiveness	8000-20000	100:15	23℃@12h/80℃@1h	——	0.5	70D	130℃
R-381-4 Enhanced	Epoxy Resin	Filling aluminium casting water pumps	15000-21000	100:10	23℃@12h	——	0.5	70D	130℃
R-381-4 Enhanced	Epoxy Resin	Potting shielded pump	5500-7500	100:17	23℃@12h/80℃@1h	V-0	0.7	75D	155℃
R-381-42	Epoxy Resin	High strength, low curing shrinkage, low CTE(Coefficient of Thermal Expansion)	40000-90000	100:10	80℃@2h+120℃@2h	V-0	0.9	85D	180℃
R-381-47	Epoxy Resin	High thermal conductivity, medium viscosity, excellent liquidity, fast curing	100000-200000	100:7	80℃@2h	V-0	1.3	90D	155℃
R-381-48	Epoxy Resin	Addition system,high thermal conductivity,good liquidity	30000-70000	100:7	80℃@2h	V-0	1.5	90D	155℃
R-381-4DZ	Epoxy Resin	Excellent liquidity, high thermal conductivity, flame retardant, anti-crack	6000-35000	100:13	23℃@12h/100℃@1h	V-0	0.9	80D	155℃
R-381-5	Epoxy Resin	Excellent liquidity,fast curing,good flexibility,high hardness,low modulus	8000-12000	100:16	23℃@12h/100℃@1h	V-0	0.7	75D	155℃
R-381-6	Epoxy Resin	Excellent processability, medium curing speed	8000-12000	100:18	80℃/2h	——	0.5	80D	130℃
R-383-1	Silicone	Addition system,low curing shrinkage	2000	100:100	23℃@6h/80℃@10min	V-0	0.65	60A	200℃
R-383-11	Silicone	Addition system,low cost	2500	100:100	23℃@6h/80℃@10min	V-0	0.75	60A	200℃
R-383-12	Silicone	Addition system,high flow,potting for small gaps	1000	100:100	23℃@10h/80℃@30min	V-1	0.43	68A	200℃
R-383-15	Silicone	Addition system,red color,high strength,good heat resistance	2000	100:100	23℃@6h/80℃@10min	V-0	0.55	60A	250℃
R-383-2	Silicone	Addition system,good thermal conductivity,good liquidity	2900	100:100	23℃@6h/80℃@10min	V-0	1	60A	200℃
R-383-3	Silicone	Addition system,high thermal conductivity,good liquidity	5700	100:100	23℃@6h/80℃@10min	V-0	1.6	67A	200℃
R-383-32	Silicone	Addition system,high thermal conductivity,good liquidity	8000	100:100	23℃@6h/80℃@10min	V-0	2	70A	200℃
R-383-33	Silicone	Addition system,high thermal conductivity,good liquidity	15000	100:100	23℃@6h/80℃@10min	V-0	3	78A	200℃
R-383-T	Silicone	Addition system,transparent	1000	100:100	23℃@6h/80℃@10min	——	——	30A	200℃
R-383-T5	Silicone	Addition system,transparent,strong bond strength	500	100:100	60℃@1h/80℃@30min	——	——	18A	200℃
R-383-T51	Silicone	Addition system,transparent,Gel	900	100:100	23℃@6h/80℃@10min	——	——	190Cone penetration	200℃
R-383-6	Silicone	Condensation system,easy mixing ratio,good adhesion	900	100:20	23℃@24h	——	0.55	48A	200℃
R-383-7	Silicone	Condensation system,good adhesion	900	100:10	23℃@24h	——	0.55	48A	200℃
R-383-8	Silicone	Condensation system,flame retardant,matte color available	900	100:10	23℃@24h	V-1	0.4	31A	200℃
R-383-T6	Silicone	Condensation system,transparent,good adhesion	600	100:10	23℃@24h			30A	200℃
R-382-53	Polyurethane	Soft,low temperature resistance,good adhesion	1300	100/30	23℃@12h/80℃@1h	V-0	0.4	50A	130℃
R-382-271	Polyurethane	Low viscosity,vibrate resistance,shiny surface	600	100/20	23℃@12h/80℃@1h	V-0	0.5	75A	130℃
R-382-B3	Polyurethane	Flexible,vibrate resistance,shiny surface	1100	100/17	23℃@12h/60℃@4h	V-0	0.6	80A	130℃
R-382-32	Polyurethane	good adhesion,vibrate resistance,fast curing	1000	100/25	23℃@12h/80℃@1h	V-0	0.6	90A	130℃
R-382-13	Polyurethane	Extra low viscosity,vibrate resistance,shiny surface	500	100/33	23℃@12h/80℃@1h	V-0	0.4	50D	130℃
R-382-36	Polyurethane	high hardness,low shrinkage，vibrate resistance,good water resistance	1200	100/20	23℃@12h/80℃@1h	V-0	0.65	70D	130℃
R-382-39	Polyurethane	High thermal conductivity,strong water resistance,resistance to cold thermal shock	2500	100/14	23℃@12h/80℃@1h	V-0	1	40D	130℃
R-382-T2	Polyurethane	Transparent,soft,low temperature resistance,waterproof	350	100/20	23℃@12h/80℃@1h	V-0	——	30A	130℃