Smooth finish of a1
There are 3 main techniques for giving A1 a smooth finish:
A1 Thix A
Add A1 Thix A to the A1 to thicken it into a paste. Apply the thickened A1 with a spatula or putty knife. Within 1 hour, you can finish this layer with a slightly damp sponge for a smooth result. After drying, you can further smooth the A1 object with (waterproof) abrasive pads or (waterproof) sandpaper.
A1 ATP Powder
A1 ATP Powder is a volume thickener that lets you thicken A1 to filler thickness. You can keep adding ATP Powder until the desired thickness is reached. However, adding a large amount of ATP Powder results in a weaker product. ATP Powder can only be used for indoor applications. A1 with ATP Powder is easy to apply with tools such as a spatula, palette knife or putty knife.
After drying, you can refine the surface further with waterproof abrasive pads or waterproof sandpaper for an even smoother result.
C-Veil
C-Veil is a thin glass fleece used for finishing. Apply C-Veil to the last layer of A1 while it is still damp. If the A1 has already dried, first coat it with a fresh layer of A1. C-Veil tears easily into small pieces that are easy to press in, so you can achieve a nice, smooth and seamless result. If desired, you can apply a second layer of C-Veil. Like A1 Triaxial Fibre, C-Veil cannot be sanded.
Smooth finish with Thix A using a brush, roller, spatula, squeegee, sponge, sandpaper or machine
Smooth finish with C-Veil
Smooth finish with A1 ATP Powder