Wilsor Epoxy foam

Foaming epoxy resin in any desired hardness/volume by adding Wilsor Blowing Agent:

The amount of Wilsor Blowing Agent allows you to control foam volume and foam firmness.

* 1% blowing agent on the epoxy mixture gives about double the original volume and therefore a very strong and hard compact foam.

* 5% blowing agent gives foam volume approximately 5 times original volume (at free foaming and ± 20°C)

Instructions:

• 1. The mixing ratio of resin and hardener is 2:1 by weight. Determine how much resin/hardener you want to froth. Suppose you have 150 gr. of resin/hardener to foam up to ± 3 times the original volume.
• 2. You will need: * 100 gr. of the special epoxy resin * 50 gr. of the special epoxy hardener * 4.5 gr. (= 3%) Wilsor Blowing Agent
• 3. First, mix the blowing agent into the epoxy resin. It does not mix well together causing the epoxy resin to become cloudy. Just make sure, by mixing well, that it becomes an even cloud. The resin mixture can be kept for some time (an hour), but in the longer term it will separate again and the blowing agent slowly deteriorates in foaming power.
• 4. Mix in the hardener in the appropriate amount (mixing ratio hardener to resin is 1 : 2 by weight). When well mixed, stop stirring. The epoxy mixture slowly begins to foam, with the cloudy transparent color changing to white. Depending on the initial temperature, the foaming epoxy mixture can be poured into a mold for about 5 minutes. After ± 10 min, depending on the initial temperature, the foam formed begins to harden and reaches final strength after 24 hours at 20°C.
• 5. The epoxy system used is fast. It can also be used as a repair resin without blowing agent. Note that a lot of heat is released when mixing a larger amount. With foam, this heat is distributed over a large volume and does little harm, but with compact pouring and also when using little blowing agent and larger volumes, this heat generation must be taken into account.