Nicholas123
N/A
Do I need an undercoat?
Painting GRP just follow the manufacturers instructions - clean, rub down degrease undercoat and topcoat. Nothing magic about it. Applying paint is easy - it is the preparation that is important. Stainless a different matter. Not easy to get paint to stick - and why would you want to?
Open a Photobucket account. Upload your photos. Click on the photo you want to use and you will get a box with choices. click Share then click IMG. this saves a link to your photo. Go back to your thread. Put the cursor where you want the photo, press Ctrl and V. Your link will appear and will show as your photo in your thread.
Once you get the hang it is easy - has to be if I can do it!
Back to your paint. Interlux has been out of production for years, replaced by Topcoat. It needed an undercoat on GRP when I used in my youth. The current undercoat is called Prekote.