Working with composite: treatment and repairing

This is what we done on the radome for composite repairing. To do this , first the crack or hole on the radome surface must be remove and sand it by using the sander . Say the hole on the radome surface is 2inches, so the repairing area (coating with the composite) should be at least 4 inches in diameter. Area in which out from the crack must be sanding off so that the layer of composite compound could be applied. The honeycomb within the crack must be removed and replace with the new one.

Sanding with using air angle sander

This is how its done- The centre, which is honeycomb is been replaced with the the new one.

After that, put the wet lay-up (consists of hardened and resin, with the ratio 1:3, combined with the fibre glass cloth and microbaloon ) to the surface of the repairing area. Put it until it is fit enough to cover the repairing area. Let it dry for almost a day(depend on the condition).

As the surface of the composite repair is dry enough, sand that area until it is smooth and shaped to the body surface , like this radome. If there is the crack or not smooth surface cause by during the wet lay-up process, put the glass fiber compound to the surface and let it dry enough. Repeat the process again.

Adding the glass fiber compound to the repairing area.

Final touch