Normac NR-806 is a two component polyether based urethane casting system yielding a cured hardness of 80 Shore A.

PREPOLYMER PROPERTIES

 Prepolymer:                                 TDI - Ether

 Appearance @ 27^OC (80^OF):      Clear liquid

 Viscosity @ 100^OC (212^OF):       600 cps

PROCESSING INFORMATION

Curative pph (ratio):                   20 (100 parts "A" to 20 parts "B" by weight)

Stoichiometry:                             95

Prepolymer Temperature:          27^OC (80^OF)

Curative Temperature:               27^OC (80^OF)

Working Pot Life:                       30-40 minutes

ELASTOMER PROPERTIES

Shore Hardness:                         80 + 5 shore A

100% Modulus:                          1100 psi (ASTM D412)

300% Modulus:                          2200 psi (ASTM D412)

Tensile Strength:                         5000 psi (ASTM D412)

Elongation:                                  430% (ASTM D412)

Tear Strength (D-470 pli):          125 (ASTM D470)

Bashore Resilience:                    42% (ASTM D2632)

Taber Abrasion:                          68.6 (ASTM D4060)

(mg loss per 1000 cycles)

H-18 wheel on 1000g load

Rev.0