SURFACE PREPARATION AND APPLICATION PROCEDURE

Bare or restored Wood.
- In order to obtain “closed-pore” smooth surface, apply two coats of POLIGLASS varnish diluted up to 50-100% with Thinner 203 (according to wood absorption). If the pore on the wood is coarse, a third coat, less diluted, may be required. Let dry for 8-10 hours, sand with fine abrasive-paper and apply 2-3 coats of two-component finish (e.g. SPACE CLEAR UV or ACRIGLASS UV).
- On the other hand, if a surface with “open-pore” is desired, apply a single coat of POLIGLASS thinned 50-100% with Thinner 203, (according wood absorption). Let dry for 8-10 hours, sand with fine abrasive-paper and apply 2-3 coats of two-component finish (e.g. SPACE CLEAR UV or ACRIGLASS UV).

Previously Varnished Wood. Sandpaper the old varnish thoroughly and remove dust. If the old paint system was made with two-component polyurethane varnish, just overcoat with 2-3 coats of POLIGLASS  varnish allowing 8-10 hours between coats. If the old paint system is unknown it is recommended to test the new varnish on a small area to check if POLIGLASS   is compatible with the old varnish and to make sure that the old coating is still in sound condition and does not soften when overcoated; if there will be no inconvenient apply 2-3 coats of POLIGLASS  varnish. In the case of loose, powdery or non-compatible old varnish, it is recommended that the old varnish should be stripped completely down to bare wood with a paint-remover or by scraping and sandpapering. Once back to bare wood follow the recommended coating system as indicated above for new wood.

NOTE_The recommended number of  coats for each varnish  is only indicative; the number of coats effectively required mostly depends by wood absorption. For bare new wood we recommend  the application of at least 10 coats in total of Poliglass and topcoat varnish.  For the restoration of old varnishes brought back to bare wood, the application of at least 6-8 coats is recommended. For particularly important works please contact our technical service.