<html> PianoLac, The Sealer has components which fill the pores. Arthur has the proper terminology for their function. One of them is a super wetting agent which loosens the tension within the material. You have noticed that as you spray an open pore finish, the more coats you put on, the bigger the pores get. This is caused by the tension within the material (sort of like a meniscus). The wetting agent allows the material to flow deeper into the pores drawing it in; where before it developed surface tension at the edge of the pore. Jokingly I said the molecules have a tendency to lock arms and prevent each other from falling into the precipice but the wetting agent has them acting like lemmings. Paste wood filler can be used for enhancing the grain rather than a need to fill the pores. PianoLac also has a stain blocker to promote even stain absorption. Some of the criteria which led to the development of PianoLac are: Quick build, quick dry, easy sanding, non-blue haze, non-imprint, rub to hi-gloss. Arthur, jump in any time, help me out here   :-) Regards, Jon Page At 12:03 PM 02/12/2000 -0500, you wrote: > > >On Sat, 12 Feb 2000 09:06:31 -0500 Jon Page <jonpage@mediaone.net> >writes: >> The grainfiller is a spray-on sanding sealer, not a paste. > >HI Jon - > >Is this more similar to a traditional filler or a sanding sealer (in >terms of solids content).  In other words, does the product actually >completely fill the pores in one or two passes, as a paste wood filler >would do?  And what ARE the solids that are left behind?  I wouldn't want >a large build-up of sanding sealer serving as filler, as this usually >causes problems down the road, but perhaps this product is different? > >Intrigued.... > >Mark Potter >bases-loaded@juno.com > </html>