Envirolak Envirothane 170 & 170TB Primer High Solids ELPR170

Envirolak 170 primer and 170TB are high solids (70% by weight) water based primers that provide an excellent foundation for solid colors on MDF, solid wood, or for refinishing. If you are not using 170/170TB primer on new MDF, it needs be catalyzed at a minimum of 3% with CAT100-LV hardener! 170TB primer can be used on solid wood, or for refinishing applications as a 2K when mixed 3-5% with CAT100-LV hardener to improve adhesion, moisture resistance, and durability. 170/170TB can only be used as a 1K without catalyst directly over MDF!  170 and 170TB must be catalyzed for all surfaces except new MDF/HDF! 170 will block tannin and stains with 2 coats when catalyzed. It is recommended to wait at least 12 hours between coats. 170 and 170TB are the same primer. 170TB contains a tannin blocking additive that is effective on new wood. This high-hide primer lays down very flat and provides unsurpassed filling properties. For MDF it will not swell the fibers like other water based products. It