KAV9963
A clear, very fast curing, two-component, high-strength epoxy adhesive that is resistant to fuels, solvents and vibration; easily sandable when fully cured. Does not become brittle with age. Bonds wood, fibreglass, carbon composites, aluminium, copper, steel, brass, concrete, glass, hard plastics, polystyrene foam, etc.
Properties
- Ingredient mixing ratio: 1:1 (by volume and weight)
- Initial colour: clear
- Final colour: clear
- Viscosity (after mixing): 5000–10000 mPa.s
- Working time (to gelation): ca. 5 min (20 °C to 25 °C)
- Handling of glued parts: after 15–20 min
- Half strength: after 10–15 min
- Full strength: after 2–3 h
- Full cure: 16–24 h
- Shear strength: 20 N/mm²
- Temperature resistance of bonded joint: -40 °C to +120 °C
- Removal of excess uncured adhesive: cloth or paper towel moistened with denatured alcohol.
Thinner: S6300 epoxy thinner (the use of thinners increases the curing time and reduces the final strength of the joint - if you need a "thinner" epoxy, use a laminating or finishing epoxy with a lower viscosity).
Use as a sealer, suitable fillers: microballoons, talc, baby backfill, diatomaceous earth, fine balsa or lime sawdust, chopped fibreglass. Caution - the addition of filler may reduce working time by up to 25% and (depending on the type and amount of filler used) may reduce joint strength.
Suitable for bonding: softwood and hardwood, chipboard, plywood, metals, polystyrene foam, ceramics, porcelain, fibreglass and carbon laminates, fibreglass and carbon fabrics and fibres.
Not suitable for bonding: soft and flexible plastics (incl. EPP and EPO), polyethylene, Teflon.
Storing: in a tightly sealed container, in a cool, dry and dark place (at a temperature of 10 °C to 25 °C). Do not expose to temperatures below 10 °C. Take care not to confuse the resin and hardener caps - even a small amount of hardener can degrade large quantities of resin.
Shelf life: under proper storage conditions, we guarantee a shelf life of 1 year while maintaining the above product properties. Practical experience shows that epoxy resins based on bisphenol A and epichlorohydrin maintain their excellent properties for many years when stored correctly (see also Note 2) - if you buy a pack of adhesive appropriate to your consumption, you do not have to "worry" about its lifetime at all.
Note 1: the curing of the adhesive depends mainly on the ambient temperature; if you mix larger quantities of epoxy at a time (typically more than 20–30 g) it can cure much faster - to maintain longer working time, the adhesive needs to be cooled, e.g. in a water bath. This is because heat is released when the resin and hardener react, and also because the resin cures faster at higher temperatures. And since the mass of the resin (and therefore the amount of heat generated) increases faster than the size of the external surface from which heat is dissipated to the surroundings as the volume increases, more resin is heated and cured faster. Don't you believe it? Believe. A 1 cm cube has a volume of 1 cm³ and a surface area of 6 cm² - a 6:1 ratio, while a 2 cm cube has a volume of 8 cm³ and a surface area of 24 cm² - a ratio of only 3:1.
Note 2: originally clear and quite flowable epoxy resins based on bisphenol A and epichlorohydrin can sometimes thicken ("curdle" like bee honey) and lose transparency - this is due to exposure to low temperatures, humidity or time. By gently heating it in hot water (60–70 °C) for a few minutes until the resin becomes clear again in its entire volume, you will get the resin "as new" again, with its original properties.
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