Originally Posted by
Harry72
Jill, have you stained (assuming from your other post)radiata pine before?
A few hints on using this stain on crapiarta pine,
1. Sanding is the key, the more even the sanding the more even the staining. Uneven sanding will lead to blotching, also filler putty sanded down will blotch unless the whole area/panel is puttied and sanded the same(ie, grain filled).
2. Always sand exposed end grain to 1 or 2 grits higher than the side/face grain as it soaks up stains and finishes faster.
3. If you want a dark colour dont sand too fine, 180g on face grain and 220~240g on end grain is ideal, a fine sanded surface will not hold the solids that are in dark stains. Do not use any sanding sealer... repeat do not use sanding sealer( it stops the stain from working properly)
4. With Wattyl interior stain, brush on a wet coat then well before it starts to dry rub it in with a rag/rubber to even it out, start with a circular motion after a while it will start to thicken then drag the rubber along with the grain, once it looks even let it near fully dry then using a clean rag wipe along the grain to remove any excess.
Its an art... much like some of the actions used while applying french polish.
5. PolyU is about the only finish you can use on top of oil based stains(shellac can too, but its not as strong), oil finishes like Danish oil are too compatable, while applying it will lift the stain... polyU will also if you overwork it.
6. The first coat of polyU(Im assuming you are brushing it on)thin out the polyU to about 50/50 with turps, lightly brush on a thin coat to seal the surface. Once dry dont sand this coat instead apply a nice thick coat that hasnt been thinned, sand this coat with about 320~400g wet and dry paper sparingly using water and a small amount of dishwashing detergent as a lubricant, no need to over sand as your only "denibbing" any dust or raised grain run your hand across the surface if it feels smooth with no grittyness its done. Wipe clean with fresh water and let dry fully.
7.Applying the top coat, if using full gloss once again unthinned and applied thick as possible(without runs that is!), high gloss polyU needs thickness to flatten out to a high shine just like enamel paints. 1 coat will be enough.
For a low sheen polyU apply 2 light coats but thin them out to about 90/10 poly/turps, denib once again between the coats.