: Limited to date. It seems very comparable to MAS. It would depend
: on what modulus resin they used. RR is one of the few suppliers
: of epoxy resin that offer different modulus resins. Each one is
: suited to different applications.

: Below are links to the respective tech sheets (MAS had no data
: on-line):
: http://www.resinresearch.net/id8.html
: http://www.westsystem.com/ss/typical-physical-properties/

: I'll compare a few values. RR first with West in parenthesis.

: Resin Research 2000 resin (medium modulus for hand layups) w/2100
: hardener (compare to West System 105/207)
: Barcol hardness = 83 (84.4) (West 105/205 or 206 = 83)
: Tensile (psi) = 9,800 (6,748)
: Flex Strength (psi) = 14,800 (11,324)
: Flex Modulus (psi) = 480,000 (412,000)
: HDT (heat deflection temp) = 122F (117F)
: Compression (yield, psi) = 15,400 (11,043)
: % Elongation = 3.8 (3.8)

: The surface hardness IS slightly lower but is the same as West 105
: with 205 or 206 hardeners. RR seems to have much higher tensile,
: compressive and flexural strengths with a higher heat
: deformation temperature. I can see why Pat switched...

Only comment I'd have is it would seem you'd want light colored decks, 122 degrees is a pretty low heat deflection temperature. Very easy in the summer to reach that with dark deck colors.

Bill H.