Need for sealing under oil grounds over acrylic primer on hardboard? ApproveRejectUn-ApproveSubscribeUn-Unsubscribe
Question asked 2019-07-20 12:26:50 ...
Most recent comment 2019-07-20 20:45:10
Grounds / Priming
Dear Moderators Please excuse my "test" question posted prior to this one. I've been having a lot of trouble with the question form. This is the 3rd time I've tried to post this question. I have primed a number of unsealed hardboard panels with 3 coats of acrylic primer and plan to follow up with 2 coats of lead primer. Should I have sealed the panels first eg with a PVA or acrylic resin emulsion? Looking forward to your responses. Kind regards, Jenny
Answers and Comments
The decision to seal before applying an acrylic dispersion
ground to a panel is up to you. It is technically not necessary in this
instance. It is a good idea to size fabric supports before applying an acrylic
dispersion ground, but this is more for keeping the ground from seeping through
the canvas. It is, however, absolutely necessary to size a fabric support (a
few layers of acrylic dispersion ground would also function) before applying an
oil ground as the acids in the oil adversely affect the cellulose.
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