136581 Thickness:0.5" Super Dense or sprayed

or sprayed

non-toxic water-based polyurethane in Satin

phosphates

this product is more specialized in its ability to seal knots and resins from leaching out

136581 Thickness:0.5" Super Dense or sprayedPolyiso Rigid Foam useful for all sorts of projects walls, roofs. (not for use under concrete) IN STOCK at our warehouse in Fairfield, Iowa Most are NEW Factory Seconds Retails for $60 per sheet or more. 4' x 8' and 4' x 4' Sheets: Thick R Value Price Thickness R Value 4 x 8 4 x 4 4" + 1 2" OSB R 25 N A N A 4. 5" R 27 N A N A 4" Foil Faced R 24 N A N A 4" R 24 $50 $25 4" Damaged R 24 $40 N A 3. 1" R 18 $40 N A 3" R 18 $35 $17 2. 75" R 16. 5 $33 N A 2.