105 Epoxy Resin is the base material on which all WEST SYSTEM 105 System epoxy compounds are built. The resin is a clear, pale yellow, low-viscosity liquid epoxy resin that cures to a hard, solid plastic with superior phy...

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105 Epoxy Resin is the base material on which all WEST SYSTEM 105 System epoxy compounds are built. The resin is a clear, pale yellow, low-viscosity liquid epoxy resin that cures to a hard, solid plastic with superior physical properties. Formulated for use with WEST SYSTEM hardeners, it can be cured in a wide temperature range to form a high-strength solid with excellent moisture resistance.

105 Epoxy Resin is formulated without volatile solvents and does not shrink after curing. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyester or vinylester resins. Resin viscosity is approximately 1000 centipoise (cP) at 72 F (22C).

105 Epoxy Resin is designed specifically to wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals when mixed at the proper ratio with a WEST SYSTEM Epoxy hardener. An excellent adhesive, 105 epoxy mixtures will bridge gaps and fill voids when modified with WEST SYSTEM fillers and can be sanded and shaped when cured. With roller applications, it has excellent thin-film characteristics to flow out and self-level without "fisheyeing." 105 Epoxy Resin/207 Special Clear Hardener mixtures cure clear so you can achieve a natural finish when coating with varnish.

Formulated without volatile solvents, 105 Epoxy Resin does not shrink after curing. It has a relatively high flash point and no strong solvent odor, making it safer to work with than polyester or vinylester resins.

Pair 105 Epoxy with corresponding letter size of 205 Fast Hardener, 206 Slow Hardener, 209 Extra Slow Hardener or 207 Special Clear Hardener.

Bundle Includes:

  • West System 105 - Epoxy Resin (1 qt)
  • West System 207 - Special Clear Epoxy Hardener (.66 pt)
  • West System 300 - Mini Epoxy Metering Pump Set


  • CONVENIENT EPOXY BUNDLE contains one can of WEST SYSTEM 105-A Resin (32 fl oz), WEST SYSTEM 207-SB Extra Clear Hardener (10 fl oz), and one set of calibrated 300 Mini Pumps. 207 Extra Clear Hardener is a water-clear epoxy curing agent developed for coating and fiberglass cloth application where an exceptionally clear, moisture-resistant, natural wood finish is desired. Durable polypropylene pumps provide years of dependable service.
  • 1105 EPOXY RESIN is a clear, low-viscosity liquid epoxy resin. Blended with 207 Extra Clear Hardener at a 3:1 ratio, it cures water clear to a hard, solid plastic with superior physical properties. Wets out without fisheyeing Excellent for clear coating yet has all the . It will wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. Resin viscosity is approximately 1000 centipoise at 72°F (22°C)
  • BLUSH-FREE 207 SPECIAL CLEAR HARDENER is an excellent choice for clear coating application. Blended with 105 Epoxy Resin, 207 Hardener will not blush or turn cloudy in humid conditions. Thin film applications roll out and tip off smoothly, requiring less sanding in preparation for finish coatings. Bundle includes calibrated pumps that dispense 105 Resin & 207 Extra Clear Hardener at the correct 3-part resin to 1-part hardener mix ratio with one pump stroke of each; yielding 0.9 fl oz.
  • POT LIFE AT 72°F (22°C) is 20 to 26 minutes. Cures to a solid state in 10 to 15 hours. Cures to maximum strength in 4 to 7 days. Minimum recommended working temperature is 60°F (16°C). Does not contain VOCs and has relatively high flash point and no solvent odor, making it much friendlier to use than styrenated resins.
  • EXCELLENT FOR COATNG OR BONDING, this epoxy is easily modified with WEST SYSTEM fillers, pigments, and additives to suit an enormous variety of construction and repair projects, including fiberglass boat repair, strip kayak and canoe construction.
  • INCLUDES CALIBRATED PUMPS that dispense 105 Resin & 207 Slow Hardener at the correct 3-part resin to 1-part hardener mix ratio. One pump stroke of resin for each one pump stroke of hardener yields 0.8 fl oz of the exact 5:1 epoxy mix ratio. These durable polypropylene pumps provide years of dependable service.
  • CONVENIENT EPOXY BUNDLE contains one can of WEST SYSTEM 105-A Resin (32 fl oz), WEST SYSTEM 207-SB Extra Clear Hardener (10 fl oz), and one set of calibrated 300 Mini Pumps. 207 Extra Clear Hardener is a water-clear epoxy curing agent developed for coating and fiberglass cloth application where an exceptionally clear, moisture-resistant, natural wood finish is desired. Durable polypropylene pumps provide years of dependable service.
  • 1105 EPOXY RESIN is a clear, low-viscosity liquid epoxy resin. Blended with 207 Extra Clear Hardener at a 3:1 ratio, it cures water clear to a hard, solid plastic with superior physical properties. Wets out without fisheyeing Excellent for clear coating yet has all the . It will wet out and bond with wood fiber, fiberglass, reinforcing fabrics and a variety of metals. Resin viscosity is approximately 1000 centipoise at 72°F (22°C)
  • BLUSH-FREE 207 SPECIAL CLEAR HARDENER is an excellent choice for clear coating application. Blended with 105 Epoxy Resin, 207 Hardener will not blush or turn cloudy in humid conditions. Thin film applications roll out and tip off smoothly, requiring less sanding in preparation for finish coatings. Bundle includes calibrated pumps that dispense 105 Resin & 207 Extra Clear Hardener at the correct 3-part resin to 1-part hardener mix ratio with one pump stroke of each; yielding 0.9 fl oz.
  • POT LIFE AT 72°F (22°C) is 20 to 26 minutes. Cures to a solid state in 10 to 15 hours. Cures to maximum strength in 4 to 7 days. Minimum recommended working temperature is 60°F (16°C). Does not contain VOCs and has relatively high flash point and no solvent odor, making it much friendlier to use than styrenated resins.
  • EXCELLENT FOR COATNG OR BONDING, this epoxy is easily modified with WEST SYSTEM fillers, pigments, and additives to suit an enormous variety of construction and repair projects, including fiberglass boat repair, strip kayak and canoe construction.
  • INCLUDES CALIBRATED PUMPS that dispense 105 Resin & 207 Slow Hardener at the correct 3-part resin to 1-part hardener mix ratio. One pump stroke of resin for each one pump stroke of hardener yields 0.8 fl oz of the exact 5:1 epoxy mix ratio. These durable polypropylene pumps provide years of dependable service.

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