Shieldcoat Concrete Primer X in Sydney

Primer X is the clear, solvent based primer that goes under spray resin on most concrete. The pail reads Shieldcoat Concrete Primer X (formerly Shieldseal X, and listed on Shieldcoat’s website as Concreshield Primer), and we keep it at our Wetherill Park warehouse in 20L pails.

When do you use Primer X?

Before Step Safe Heavy Duty on:

• new, uncoated broom finish concrete, once it’s been ground or acid washed, neutralised and pressure cleaned
• old coatings that are peeling or flaking, after grinding and pressure cleaning
• sealed or painted concrete that goes sticky when you test it with thinners (solvent based)
• trowel finish and smooth concrete, exposed aggregate and pool coping
• brick pavers, but only on a concrete base

Over water based coatings and on fibre cement decking, use Step Safe WB Primer instead.

How to apply it

Ready to use, so give it a stir and roll it on with a 10 to 12mm nap roller or a soft bristle broom. Don’t spray it. Rolling works it into the pores of the concrete for the best bond. The fumes spread but clear quickly. It’s touch dry in about an hour, covers up to 5m² per litre, and cleans up with xylene.

Fill any cracks with Slab Repair before you prime.