Urethane Casting Compounds

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39 Products

Casting Compounds

Capture intricate details when creating prototypes, molds, and linings with these easy-to-mix two-part compounds. This urethane is water and abrasion resistant.

View our selection of release agents. View additional information about the hardness of these materials.

Urethane
Hardness	Time to Harden	Time to Cure	Time to Demold	Cure Temperature, °F	Max. Temperature, °F	Shrinkage	Color	Mixing Required	Volume, cu. in.	Weight, lbs.		Each
Soft
Durometer 20A	15 min.	168 hrs.	5 hrs.	77°	180°	0.1%	Black	Yes	25	1	0000000	000000
Durometer 20A	15 min.	168 hrs.	5 hrs.	77°	180°	0.1%	Black	Yes	250	10	0000000	000000
Firm
Durometer 40A	15 min.	168 hrs.	5 hrs.	77°	180°	0.1%	Black	Yes	25	1	0000000	00000
Durometer 40A	15 min.	168 hrs.	5 hrs.	77°	180°	0.1%	Black	Yes	250	10	0000000	000000
Durometer 60A	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	25	1	0000000	00000
Durometer 60A	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	250	10	0000000	000000
Hard
Durometer 80A	15 min.	168 hrs.	3 hrs.	77°	180°	0.1%	Black	Yes	6	1/4	0000000	00000
Durometer 80A	15 min.	168 hrs.	3 hrs.	77°	180°	0.1%	Black	Yes	25	1	0000000	00000
Durometer 80A	15 min.	168 hrs.	3 hrs.	77°	180°	0.1%	Black	Yes	250	10	0000000	000000
Durometer 94A	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	25	1	0000000	00000
Durometer 94A	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	250	10	0000000	000000
Durometer 60D	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	25	1	0000000	00000
Durometer 60D	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	250	10	0000000	000000
Durometer 75D	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	25	1	00000000	00000
Durometer 75D	15 min.	168 hrs.	2 hrs.	77°	180°	0.1%	Black	Yes	250	10	00000000	000000
Durometer 85D	5 min.	2 hrs.	1.5 hrs.	77°	180°	0.1%	Green	Yes	80	5	000000	00000
Durometer 85D	5 min.	2 hrs.	1.5 hrs.	77°	180°	0.1%	Green	Yes	320	20	000000	000000

Easy-to-Work Casting Compounds

Combine the liquid components to form a putty that can be molded into or around any shape. Use these compounds to capture intricate details when creating prototypes, molds, and linings.

View our selection of release agents. View additional information about the hardness of these materials.

Urethane
Hardness	Time to Harden	Time to Cure	Time to Demold	Cure Temperature, °F	Max. Temperature, °F	Shrinkage	Color	Mixing Required	Volume, cu. in.	Weight, lbs.		Each
Firm
Durometer 60A	15 min.	168 hrs.	3 hrs.	75°	180°	Not Rated	Dark Gray	Yes	25	1	0000000	000000
Durometer 60A	15 min.	168 hrs.	3 hrs.	75°	180°	Not Rated	Dark Gray	Yes	100	4	0000000	000000
Hard
Durometer 85A	15 min.	168 hrs.	3 hrs.	75°	180°	Not Rated	Black	Yes	25	1	0000000	00000
Durometer 85A	15 min.	168 hrs.	3 hrs.	75°	180°	Not Rated	Black	Yes	100	4	0000000	000000
Durometer 60D	15 min.	168 hrs.	3 hrs.	75°	180°	Not Rated	Dark Gray	Yes	25	1	00000000	00000
Durometer 60D	15 min.	168 hrs.	3 hrs.	75°	180°	Not Rated	Dark Gray	Yes	100	4	00000000	000000

See-Through Casting Compounds

Create transparent molds to monitor fill levels, differentiate parts at a glance, and avoid damaging parts when cutting the mold away. These casting compounds are two parts that activate when mixed.

Urethane compounds are tougher than silicone compounds, so your molds will last longer. Although not required, curing urethane molds inside a vacuum chamber improves their clarity. By removing trapped air bubbles, the chamber prevents the finished mold from looking speckled.

View our selection of release agents. View additional information about the hardness of these materials.

Urethane
Hardness	Time to Harden	Time to Cure	Time to Demold	Max. Temperature, °F	Shrinkage	Color	Mixing Required	Volume, cu. in.	Weight, lbs.		Each
Firm
Durometer 40A	6 min.	144 hrs. @ 77° F	2 hrs. @ 77° F	180°	0.8%	Clear	Yes	25	1	00000000	000000
Durometer 60A	6 min.	144 hrs. @ 77° F	2 hrs. @ 77° F	180°	0.8%	Clear	Yes	25	1	00000000	00000
Hard
Durometer 80A	6 min.	144 hrs. @ 77° F	2 hrs. @ 77° F	180°	0.8%	Clear	Yes	25	1	0000000	00000
Durometer 75D	6 min.	144 hrs. @ 77° F	2 hrs. @ 77° F	180°	0.8%	Clear	Yes	25	1	0000000	00000

Fine-Detail Casting Compounds

Replicate even the most complex details when creating prototypes, molds, and linings. This easy-to-mix two-part compound flows smoothly into crevices. Cast up to 1/2" in thickness at a time.

View our selection of release agents. View additional information about the hardness of this material.

Urethane
Hardness	Time to Harden	Time to Cure	Time to Demold	Cure Temperature, °F	Max. Temperature, °F	Shrinkage	Color	Mixing Required	Volume, cu. in.	Weight, lbs.		Each
Hard
Durometer 80D	20 min.	168 hrs.	4 hrs.	72°	134°	0.3%	White	Yes	49	2	0000000	000000
Durometer 80D	20 min.	168 hrs.	4 hrs.	72°	134°	0.3%	White	Yes	395	16	00000000	000000

Machinable Casting Compounds

After these compounds cure, they're tough enough to be machined. They are easy-to-mix two-part compounds that capture intricate details when creating prototypes, molds, and linings.

View our selection of release agents. View additional information about the hardness of these materials.

Aluminum-Filled Urethane
Hardness	Time to Harden	Time to Cure	Time to Demold	Cure Temperature, °F	Max. Temperature, °F	Shrinkage	Color	Mixing Required	Volume, cu. in.	Weight, lbs.		Each
Hard
Durometer 84D	6 min.	168 hrs.	90 min.	72°	130°	1.5%	Gray	Yes	72 1/2	5	00000000	0000000
Durometer 84D	6 min.	168 hrs.	90 min.	72°	130°	1.5%	Gray	Yes	290	20	00000000	000000

Food Industry Casting Compounds

These food-grade compounds comply with FDA 21 CFR. They are easy-to-mix two-part compounds that capture intricate details when creating prototypes, molds, and linings.

View our selection of release agents. View additional information about the hardness of these materials.

Urethane
Hardness	Time to Harden	Time to Cure	Time to Demold	Cure Temperature, °F	Max. Temperature, °F	Shrinkage	Color	Mixing Required	Specifications Met	Volume, cu. in.	Weight, lbs.		Each
Firm
Durometer 40A	8 min.	12 hrs.	2 hrs.	120°	180°	5%	White	Yes	FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680	25	1	0000000	000000
Durometer 60A	8 min.	12 hrs.	2 hrs.	120°	180°	5%	White	Yes	FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680	25	1	0000000	00000
Durometer 60A	8 min.	12 hrs.	2 hrs.	120°	180°	5%	White	Yes	FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680	250	10	0000000	000000
Hard
Durometer 78A	4 min.	12 hrs.	2 hrs.	120°	180°	5%	White	Yes	FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680	25	1	0000000	00000
Durometer 88A	4 min.	12 hrs.	2 hrs.	120°	180°	5%	White	Yes	FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680	25	1	0000000	00000
Durometer 88A	4 min.	12 hrs.	2 hrs.	120°	180°	5%	White	Yes	FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680	250	10	0000000	000000
Durometer 75D	5 min.	12 hrs.	2 hrs.	120°	180°	5%	White	Yes	FDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680	25	1	0000000	00000

Long-Life Casting Compounds

Create rubber molds that retain their shape for decades—they won’t soften, degrade, or warp, so you can continue to replicate intricate parts. Because these compounds don’t shrink as they cure, they are more accurate and predictable than other compounds.

View our selection of release agents. View additional information about the hardness of these materials.

Urethane
Hardness	Time to Harden	Time to Cure	Time to Demold	Cure Temperature, °F	Max. Temperature, °F	Shrinkage	Color	Mixing Required	Volume, cu. in.	Weight, lbs.		Each
Firm
Durometer 45A	60 min.	24 hrs.	16 hrs.	77°	200°	0%	Yellow	Yes	58	2.2	0000000	0000000