High Performance Polymer for Transom Repair
 

I have a two part 1:1 mix ratio, polymer for transom repair if anyone is interested.
it is low viscosity(easy mixing and pouring), no filler needed, but may be added, up to 50% to extend the product volume.
No to Very low shrinkage- unlike Polyester, generally, Polyesters, especially in large volume masses will shrink, cause distortion, warpage and potentially pull away from substrates, they continue to shrink for weeks- Perhaps that's why expensive no- low shrink tooling resins are sold.......Ponder it....They also continue to evolve styrene for weeks, months.

Here is the Tech Data Cured Product Properties

Color White
Rebound, Bashore, ASTM D2632-74 % 20
Compressive Yield Strength, ASTM D695-96, psi 10,201.4
Elongation, ASTM D412-80, % <10
Shore Hardness, ASTM D2240-75 D78±2
Linear Shrinkage, ASTM D2566, in/in <0.001
Ultimate Tensile, D412-80, PSI 8000
Modulus of Elasticity, ASTM D790-97, MPA 1896.7

PM ME if you want more info.