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.
170 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 can be used as a 1K without catalyst directly over MDF.
If you are not using 170 primer on new MDF, it needs be catalyzed at a minimum of 3% with CAT100-LV hardener. 170 will block tannin and stains with 2 coats when catalyzed. 170 and 170TB are the same primer. 170TB contains a tannin blocking additive.
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 offers fast dry times and is easy to sand without being easy to sand through.
MDF should be sanded with at least 180 grit (preferably 320 for any routed out areas) or finer sandpaper prior to applying the primer. Two coats can be applied same day back-to-back without sanding between.
2K system for refinishing:
Apply a coat of 170 Primer with 5% CAT100-LV Hardener (2 hour pot life) — 170 primer with catalyst will block tannin.
Sand using 320 grit sandpaper and refine with very fine or super fine sanding sponges
(Optional) 2nd Primer Coat 170 primer OR 170TB primer with 5% CAT100-LV hardener
Level sand using 320 grit sandpaper and refine with super fine sponges
1st Topcoat of 200 series ELNYW200, add 10% CAT100-LV Hardener (2 hour pot life)
If applying an optional 2nd coat, sand using 320 grit sandpaper and refine with super fine sanding sponges.
(Optional) 2nd Topcoat ELNYW200, add 10% CAT100-LV Hardener (2K)
Note: 800 series 1K or CAT150 Crosslinker can be used in above system over 2K primer instead of the catalyzed 200 series.
Recommended Spray Application & Technical Information
Air Assist Airless:
Fluid Pressure: 500-700 PSI. Air Pressure: 25 PSI (triggered) Tips: 06, 09 or 12.
Fluid Pressure: 1200-2000 PSI - Tip size: 310, 410 fine finish or ultra finish.
Air Pressure: Max - Needle size: 1.5-1.8 reduce at 2-5% with ELRX010 reducer.
Cup Gun (gravity) Air Pressure: 40 PSI - tip size: 1.8 reduce at 2-5% with ELRX010
Wet Film Build: 4-6 mils
Number of Coats: 1-2 depending on desired look
Maximum Dry Film Build: 6 mils
Coating Temperature at Application: 20°C (68°F) or higher *for colder temperatures, add reducer (ELRX010) or warm material prior to spraying.
Orders are shipped the same day Monday through Friday when ordered before 1:00PM EST.
Depending on order volume, custom colors may not ship when ordered before 1PM. Current order cutoff time for custom colors is 11AM EST. Custom color order cut off time is updated daily and can be found in the announcement at the top of every page.
Some orders will ship the same day after 1:00PM EST but there is a firm cutoff time of 5:30PM. Accurate estimated delivery dates are shown at checkout for most products.
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The following products are ground only: TWP deck stain, Arborcoat oil based stain, Simiron epoxy, most 5 gallon pails, tabletop epoxy, dry erase paints, airless paint sprayers, Benjamin Moore deck cleaning products, and all oil based gel/wiping stains, topcoats, and paints.
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