You normally only seal sub-floors for solid hardwood or bamboo , i use Mapai WFM or Bostik MVP . I offer to seal the floors with sealcrete for engineered floors, you can buy it at Sherwin Williams & Kelly Moore . Home depot or Lowes might still sell it.
Sealcrete works well for engineered floors if you have a low to medium moisture content in your sub-floor and want a little insurance.
Mapai will guarantee the floor from failing for 10 years with a moisture reading up to 8 if you use their WFM sealer with new trowels.
Sealcrete works well for engineered floors if you have a low to medium moisture content in your sub-floor and want a little insurance.
Mapai will guarantee the floor from failing for 10 years with a moisture reading up to 8 if you use their WFM sealer with new trowels.