Jo Sonja's All Purpose Sealer is a surface 'primer' and will seal a wide variety of items in preparation for painting.
Pre-priming with All Purpose Sealer or Gesso will ensure good paint adhesion and will prevent moisture loss into absorbent surfaces.
Use All Purpose Sealer rather than Gesso on items which require sealing without 'tooth' or opaque colour.
Suitable items for sealing include: wood, MDF (Fibreboard), cardboard, paper, canvas, metal, unglazed bisque and terracotta. Test for suitable adhesion on unusual surfaces. All Purpose Sealer will assist adhesion to some plastics, soaps and wide candles where flames will not come in contact with the design. A light sanding is recommended to promote adhesion of paint to any of these surfaces.
All Purpose Sealer makes an excellent glue to adhere decoupage gift wrap or fabric to wood and other surfaces.
All Purpose Sealer is a primer, not a finishing varnish. If used as a varnish it may become tacky in warm weather and cause surfaces to stick together. It is also not as durable as Jo Sonja's Polyurethane Varnish and is not recommended for this purpose.
I have used this product for the last 9 years to prime boards for mosaic work. I found it has great coverage and very economical. Bought at Bunnings years ago but now not available, that's why I contacted you direct. Thanks. Regards, Trisha