Speciality Epoxies

G/flex Epoxy

G/flex® epoxy is a toughened, resilient two-part epoxy engineered for a superior grip to metals, plastics, glass, masonry and fibreglass as well as wet and difficult-to-bond woods.  It allows you to make structural bonds that absorb the stresses of expansion, contraction, shock and vibration.

The easy-to-use 1:1 by volume mix ratio (1.2:1 by weight) of G/flex epoxy provides a 45 minute pot life and a long open time of 75 minutes at room temperature. It reaches an initial cure in 3–4 hours and a workable cure in 7–10 hours.

G/flex epoxy is available in two consistencies:

  • 650 Epoxy, a versatile easily-modified liquid epoxy
  • 655 Epoxy Adhesive, a convenient pre-thickened epoxy

Several handy G/flex kits are also available. Find out more about them here.

Downloadable technical data sheet

G/flex Epoxies

Key adhesion data for G/flex Epoxy

This table includes key technical information for a range of working materials, from steel to white oak.

Material G/Flex Surface Prep/Conditions Tensile Adhesion (psi)/(Mpa</strong
Metals
1018 steel 650 80-grit sand/dry
surface
1772 / 12.22
1018 steel 655 80-grit sand/dry
surface
3562 / 24.56
Galvanised Steel 650 100-grit wet sand 2562 / 17.66
Galvanised Steel 655 100-grit wet sand 2929 / 20.19
Aluminium 2024 T3 650 80-grit sand, etch /dry
surface
2731 / 18.83
Aluminium 2024 T3 650 Grit blast, etch /dry
surface
1856 / 12.80
Aluminium 2024 T3 655 80-grit sand, etch /wet surface 1503 / 10.36
Aluminium 2024 T3 655 80-grit sand, etch /dry surface 2153 / 14.84
Copper 650 80-grit sand 2334 / 16.09
Copper 655 80-grit sand 2685 / 18.51
Bronze 650 80-grit sand 2782 / 19.18
Bronze 650 Scotch Brite Pad
sand
2962 / 20.42
Bronze 655 80-grit sand 2936 / 20.24
Other
G-10 high-density
laminate
650 80-grit sand/dry
surface
3459 / 23.85
G-10 high-density
laminate
655 80-grit sand/dry
surface
2473 / 17.05
ABS Plastic 655 80-grit sand 1535 / 10.58
ABS Plastic 655 80-grit sand, flame
treat
1813 / 12.50
ABS Plastic 655 Alcohol wipe, flame
treat
3288 / 22.67
PVC 655 80-grit sand 1780 / 12.27
PVC 655 80-grit sand, flame
treat
1813 / 12.50
PVC 655 Alcohol wipe, flame
treat
2081 / 14.35
Polyethylene (HDPE) 655 80-grit sand 400 / 2.76
Polyethylene (HDPE) 655 80-grit sand, flame
treat
1890 / 13.03
Polyethylene (HDPE) 655 Alcohol wipe, flame
treat
2312 / 15.94
Lexan 655 80-grit sand 1870 / 12.89
Ipe 650 60-grit sand 2134 / 14.71
Ipe 655 Plane, isopropyl
alcohol wipe x 3
2223 / 15.33
Wood
Teak, vertical grain 650 80-grit sand parallel to
grain
1413 / 9.74
Teak, vertical grain 655 80-grit sand parallel to
grain
1381 / 9.52
Teak, vertical grain 655 80-grit sand alcohol wipe x 2 1503 / 10.36
White oak, vertical
grain
650 80-grit sand 1935 / 13.34
White oak, vertical
grain
655 80-grit sand 1780 /12.27
White oak, vertical
grain
655 Alcohol wipe x 2 2212 / 15.25
Purpleheart 650 60-grit sand parallel to
grain
1731 / 11.93