Thixotropic materials are those who stiffness can be reduced with the energy of a brush or knife, but not permanently. This will seal the surface so that oil does not leech into it or cause it to rot.
Jackson's Thixotropic Alkyd Oil Primer Linseed Oil 1L For Canvas Paper Ground
Pebeo Fantasy Moon Effect Paint Alkyd Oil-Based 45ml Pearl Finish Crafts
Winsor & Newton Griffin Alkyd Fast Drying Oil Paint 37ml - Buy 5 get 1 free
X3 Jacksons Handmade Soft Pastels 005 White (Cool) Boxed
RTV Brush On Thixotropic Silicone Moulding Rubber 1kg 40g kit FAST CURING
RTV Brush On Thixotropic Silicone Moulding Rubber 5kg 250g kit FAST CURING
