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* Made to Order

ELECTRICAL POLYURETHANE RESIN GUIDE - PROPERTIES
ALCHEMIE PRODUCT CODE
DESCRIPTION
COLOUR

SHORE HARDNESS

MIXED VISCOSITY
(Poise @ 25°C)
 DENSITY G/CM³ POTLIFE MINS (200g@25°c)
STANDARD POLYURETHANE RESINS
PU7220 A+B* Toughest low viscosity system. Grey 55-65D 15 1.26 7 - 9
PU7230 A+B Glass like finish, best de-gasing charateristics of the range. Black 55D 8 1.3 20-30
PU7231 A+B Glass like finish, low stress, low viscosity, low sedimentation. Black 45-50D 10-15 1.3 3 - 5
PU7240 A+B* Very hard, tough system with high density, large volume potting. Beige 86D 46 1.75 30-40
PU7241 A+B Fast cure, high heat resistance, good adhesion. Cream 85D 70 1.6 10
PU7247 A+B Fast cure, water resistance and good adhesion for high volume potting. Cream 85D 70 1.6 30
PU7250 A+B* Semi-flexible adhesive, retaining all electronic properties. Beige 45D 20 1.16 15 - 20
PU7260 A+B* General purpose encapsulant with glass like finish and good adhesion. Black        57D 10 1.44 15 - 20
PU7270 A+B General electrical encapsulant. flame retardant, excellent adhesion, low stress thermal cycling. Black 80D 10 1.5 40 - 60
PU7301 A+B* High quality encapsulation, good surface qualified to UL94 V0 rating. Black 50D 15 1.5 20 -25
PU7302 A+B* Same resin as PU7301 with a quick cure. Beige 50D 15 1.5 7 - 8
PU7330 A+B Good electronic encapsulation, low viscosity and good surface finish. Black 50D 10 1.47 20 - 30
PU7331 A+B* Similar to PU7330 but having a lower viscosity, and exhibiting better de-gasing. Black 50D 10 1.47 20 - 30
PU7351 A+B Soft elastomer providing good adhesion to chrome and PVC. Cream 65A 30 1.39 20 - 30
WATER RESISTANT RESIN SYSTEMS
PU7410 A+B* Tough, water resistant, flexibility at extreme low temperatures. Black 70 - 75A 90 1.41 15
RE-ENTERABLE RESIN SYSTEMS
PU7420 A+B A glass clear, digoutable system allows components to be fully visible even in operation. Water Clear 10A 10 0.97 20 - 40
PU7450 A+B* Flame retardant, digoutable system. Grey 40 - 45A 2.5 1.45 45
WATER CLEAR - UV STABLE RESIN SYSTEMS
PU7161 A+B Self degassing GEL system Clear 60 - 68 OO 4 - 6 0.97-0.99 4 - 6
PU7163 A+B Ultra low viscosity, self de gassing. Low stress on components Clear 55 - 65A 8 - 10 1.03-1.08 25 - 30
PU7165 A+B Ultra low viscosity, quick cure Clear 50 - 60D 8 - 18 1.02-1.07 8 - 12
PU7166 A+B Low viscosity, Polishable Clear 85 - 90D 10 - 20 1.03-1.08 12 - 17
ELECTRICAL POLYURETHANE RESIN GUIDE - PROPERTY RATINGS
* Properties rated on a sliding scale. 1 = Poor - 5 = Excellent
ALCHEMIE PRODUCT CODE
 THERMAL CONDUCTIVITY * HEAT RESISTANCE * FLAME RETARDANCY * CHEMICAL RESISTANCE * ADHESION *
STANDARD POLYURETHANE RESINS
PU7220 A+B* 2 3 2 2 3
PU7230 A+B 3 3 4 2 4
PU7231 A+B 3 3 4 2 4
PU7240 A+B* 4 5 3 3 5
PU7241 A+B 3 5 2 3 5
PU7247 A+B 3 5 2 3 5
PU7250 A+B* 1 3 1 2 5
PU7260 A+B* 3 2 3 3 3
PU7270 A+B 3 2 5 2 4
PU7301 A+B* 3 3 UL94-V0 2 4
PU7302 A+B* 3 3 UL94-V0 2 4
PU7330 A+B 3 3 3 3 4
PU7331 A+B* 3 5 3 3 4
PU7351 A+B 3 3 2 2 3
WATER RESISTANT RESIN SYSTEMS
PU7410 A+B* 1 3 5 3 3
RE-ENTERABLE RESIN SYSTEMS
PU7420 A+B* 1 2 1 2 2
PU7450 A+B* 3 2 4 2 2
WATER CLEAR - UV STABLE RESINS
PU7161 A+B 1 3 1 1 3
PU7163 A+B 1 3 1 2 3
PU7165 A+B 1 3 1 2 3
PU7166 A+B 1 3 1 3 3

 
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email: sales@alchemie.com