The Konig hardener acts as the curing catalyst for Konig's Rex Lith 2 part filler and Polyester filler. Optimum mix ratio is 10 parts filler to 1 part hardener.
Product Detail
TIP- If mixing colour into the filler, do this first, then once you are happy with the colour add the hardener. Work time once the hardener has been added is approximately 2 to 3 minutes.
