Unfortunately, there is no standard for sanitary colours as e.g. RAL or Pantone colours. On the basis of the original colours by the manufacturers we try to find the best fit with our colours. Mostly the correct colour should mostly be alpine white / plumbing white 080 (a grey white, nearly light grey). Only a few bathtubs are more white. In which case the best colour will be pure white / appliance white 005. Tip: Put a white piece of paper in your bathtub. If the colour of the bathtub seems to be darker (more grey) then your bathtub is alpine white / plumbing white. For nearly 80% of all produced bathtubs alpine white / plumbing white is the best match for a repair.
Our filler hardens when adding 2-4% hardener. Which equals a ratio of 25-50 to 1 (but it has not be that exact). Generally speaking it is better to mix less hardener with the filler than to much (approximately a walnut size amount of filler and a pea sized amount of hardener paste). When using too much hardener the putty will get porous and looses its grip.
The repair paint darkens when drying. The final result will only be reached after approximately 3 hours.
Besides of ceramic, enamel and acrylic also other comparable surfaces may be repaired with good results. Thus, this Repair-Kit is also used by many professionals for the repair of mineral cast. Unfortunately, we cannot give a reliable statement regarding colour accuracy and longterm stability. Nevertheless here applies as well that a repaired damage looks better than any damage.
The Repair-Kit is heat resistant to 60 °C. Cookers can be repaired in areas where no higher temperatures will be reached or where there is no direct contact with food. The repaired surface is not food resistant. Therefore cookware cannot be repaired.