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Master Bond adhesives

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Fibre Glast 77 Wax-Free General Purpose Polyester Molding Resin
Categories: Polymer; Thermoset; Polyester, TS; Polyester (Thermoset) - Rigid

Material Notes: Description:#77 Molding Resin is ideal for general purpose part fabrication and for building low cost molds. An internal thickening agent has been added to prevent drainage on vertical surfaces, yet it retains the low viscosity required for rapid wet out. This resin is wax free to reduce sanding between coats. #77 Polyester Molding Resin is a prepromoted, thixotropic, general purpose resin.

Performance:
  • High thixotropic index to prevent draining on vertical surfaces
  • Low viscosity fir fast wet-out
  • Styrene suppressed

Suggested Uses:#77 Polyester Molding Resin can be used for hand lay-up or spray-up for general fiberglass reinforced plastics applications.

Information provided by Fibre Glast Developments Corporation.

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Physical PropertiesOriginal ValueComments
Solids Content 56 %
Brookfield Viscosity 475 cP#2 Spindle, 30 rpm
 
Thermal PropertiesOriginal ValueComments
Flash Point 73.0 - 100 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 30.0 min
@Temperature 25.0 °C
using 1.25% #69 Catalyst
Gel Time 15.0 minAt 77°F using 1.25% #69 Catalyst
 
Descriptive Properties
Maximum Exotherm320°C

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