List of Polyester Base High Performance Polyurethane Casting Systems

Solid/Non-Foam Casting Resins

 

Polyester base (or simply "ester base") high-performance polyurethanes are known for high tensile strength, excellent abrasion resistance as well as cut/tear resistance. Parts molded with these types of materials are used in a variety of applications including liners in material handling, grain elevator buckets, wheels, pulleys, sprockets, and other mechanically demanding applications. These are also known for excellent oil resistance; however, for long-term use in constant aqueous environments, we recommend considering one of our polyether polyurethane systems.

 

Ester "Quasi" Systems
 

These are systems consist of a MDI/Ester prepolymer at higher %NCO (15 - 26 %) cured with our special curatives. "Quasi" systems are known for low viscosity and relatively lower processing temperature.
Product Code	Hardness (Shore Durometer)	Tensile Strength (psi)	Ultimate Elongation (%)	Die-C Cut/Tear Resistance (pli)	Sprit Tear Resistance (pli)	Abrasion Resistance (mg loss)
MSS-A95BQ	95 A	5500	700	913	576	75
MSS-A85BQ	85 A	6200	800	720	475	30
MSS-A80AQ	80 A	6000	900	600	350	15
MSS-A70GQ	70 A	4200	800	300	160	12

 

Ester "Full-Prepolymer" Systems

 

These are conventional prepolymer systems consists of MDI/Ester prepolymers at lower %NCO (less than 15 %), can be cured with 1,4-Butanediol, other standard amine/polyol urethane curatives, or our special curing agents. These are commonly called "hot-cast" urethane systems.
Product Code	Hardness (Shore Durometer)	Tensile Strength (psi)	Ultimate Elongation (%)	Die-C Cut/Tear Resistance (pli)	Sprit Tear Resistance (pli)	Abrasion Resistance (mg loss)
MSB-D60A	60 D	6120	300	950	461	85
MSB-A95A	95 A	4260	400	700	300	80
MSS-A90A	90 A	4200	650	600	300	62
MSS-A85A	85 A	6000	750	700	490	30