Remove liquid and hardened casting resin

Every do-it-yourselfer who works with cast resin should be aware that he is working with a fairly consistent material. Pouring in the liquid state should only take place in a targeted manner where the resin is desired. A cleaner and effective removal is only possible mechanically after curing.

Conditional removability in the liquid state

Cast resin consists of the resin itself and a hardening additive. Together they dissolve the chemical curing process. Normally, the curing element is added to the extent that casting resin has just such liquefaction or viscosity to ensure its processing ability.

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If drops are not tight in the processing or a mold, the removal of the still liquid mass can be done with the help of cleaning gasoline. Immediately dabbing and absorbing the resin with an absorbent cloth removes at least the puddle-like distributed resin directly on the surface. This procedure also applies to the removal of synthetic resin paint.

Extreme caution when processing

In the case of porous casting substrates such as wood or openings in the casting base such as cracks in the screed, joints or on damaged body shapes, the casting resin that has already penetrated and seeped into depressions and pores can no longer be removed.

When processing cast or synthetic resin, extreme care must be taken with regard to both respiratory protection and skin. If resin has landed on the skin in an accident, it is advisable to wash it immediately with mineral spirits. The skin should then be supplied with a lot of fat, for example through butter, cooking or baby oil.

Remove hardened casting resin

When cast resin has hardened, it can be compared to hard plastic and can be processed mechanically accordingly. The following tools are recommended for removing cast seams, overhangs and other undesirable traces:

  • Dremel (€ 159.99 at Amazon *)
  • Filing
  • Scalpels
  • Jigsaws, glass and metal saws

When machining the hardened cast resin, it should be noted that machining and heating lead to toxic vapors. Cast resin should only be processed with respiratory and eye protection in every aggregate state.

Tips & Tricks If you rub your protective gloves and work documents with the same release agent that you use for the inside of casting molds, you can let any splashes harden and later pull them off like drops of wax.

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