How long does Kilz oil-based primer take to complete off-gassing V.O.C.s?

Asked by ben yohai
Jacksonville, OR

We've applied Kilz oil-based primer to our subfloor prior to installing a pre-finished hickory hardwood floor. We do have an Air-wise air filter that we are currently using; the last coat of Kilz went down today, and the floor will be done tomorrow. How long before we can feel safe that the Kilz is done off-gassing? This last coat is of special concern because it is in our 8 year old daughter's bed room, and we don't want to expose her (or ourselves) to any toxins we don't have to.


Molly McCabe, AKBD, CGP, CAPS

Answered by Molly McCabe, AKBD, CGP, CAPS

Bainbridge Island, WA

A Kitchen That Works LLC

July 16, 2012

Dear Yohai,

The duration for off-gassing is very hard to estimate. It will be determined by several factors such as:

  • interior temperatures,
  • humidity and
  • air circulation.

The best advice is to provide as much ventilation as possible by opening windows and to use your nose - wait to lay the hardwood floor until you can't smell the Kilz anymore.

If you are under a time constraint, you can consider applying a sealant such as AFM Safecoat's Safe Seal or Hard Seal. You might want to contact AFM to determine which product is optimal for your situation.

Good luck!

Tagged In: home air quality

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