4. Apply a coat of penetrating primer to absorbent surfaces such as AAC blocks.
{"Image DocumentName": "4. Apply a coat of penetrating primer to absorbent surfaces such as AAC blocks.", "Image ImageDescription": "4. Apply a coat of penetrating primer to absorbent surfaces such as AAC blocks.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}