Permanent Repair

PC-Concrete™

An anchoring and crack filling epoxy

  • PC-Concrete paste epoxy - for anchoring and filling

PC-Concrete™ Anchoring and Crack Filling Epoxy is the epoxy chosen to repair cracks in warehouse and factory floors.

Cures hard enough to drive over within 3 hours at standard temperature. Nothing stronger for your anchoring* applications. PC-Concrete™ is a two component (1:1 ratio), 100% solids, high modulus, and structural epoxy paste. PC-Concrete™ is a solvent free, no odour, high strength, moisture insensitive epoxy system. The resin and hardener are uniformly dispensed for quick and easy mixing. PC-Concrete™ will not shrink. Suitable for interior and exterior** applications. Can be applied to wet and underwater surfaces.

* PC-Concrete™ is suitable for wall anchoring but not for filling large voids or cracks in walls as it may flow or drip.

** PC-Concrete™ is a high modulus structural epoxy paste. It will not expand or contract. Exterior applications of PC-Concrete™ are not advised when excessive movement is anticipated due to changing environmental conditions.

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Orders are dispatched directly from the UK distributor of PC-Products.

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Call us on 020 8866 2462
Monday – Friday 10am – 5pm
Saturday 10am – 4pm

WORKING TIME: 13-20 MINUTES
CURE TIME: 3-4 HOURS

PC-Concrete™ is not considered a paste and will drip/sag when used in volume.

Properties & Uses

Product properties:
  • sets on wet or dry surfaces or underwater
  • will not shrink or expand
  • excellent chemical resistance to mild acids, caustics, detergents, gasoline, fuel oil, salt, and fresh water
  • waterproof
  • sandable and paintable
  • use as an adhesive and filler
Use on:

Fibreglass, concrete, wood, metals, brick, glass, block, ceramics, rubber and more.

Example projects:
  • Re-anchor railing at convention center or apartment building.
  • Anchor seats in lecture hall or theaters.
  • Repair broken concrete in car park.
  • Fix spalled concrete in car wash.
  • Seal crack in sanitation and chemical storage facility containment area.
  • Anchor safe to floor prison and security pickproof epoxy
  • Anchor machinery

Coverage

How much coverage? Minimum suggested bond line thickness is 1/32 inch for two flat surfaces. Minimum suggested bond line for two uneven or rough surfaces is 1/8 inch.

Prep

Prep

Old concrete must be clean and profiled or textured. The surface must be clean and sound. It may be dry or damp, but should be free of standing water. Remove contaminants such as dust, dirt, oil and grime with a solvent such as methylated spirit, acetone, rubbing alcohol (isopropyl alcohol) or lacquer thinner. Mild detergent solution in water is also good for removing contaminants. Use a clean paper towel or rag for wiping. Do not use white spirit or paint thinner for removing contaminants. New concrete should be a minimum of 21 days old.

Prepare the surface by rough-griding, scarifying or by using other equipment that will give a roughened profile. A roughened surface is imperative for good adhesion. Always be sure the bonding surfaces are prepared in advance before mixing the product. Remove rust and loose paint with sandpaper or wire brush. Epoxy typically sticks to most paints. If there’s a concern of the paint’s adhesion then remove it with sandpaper or wire brush.

Smooth, glossy and shiny surfaces should be roughened using sandpaper to increase adhesion.

Narrow cracks are more difficult to fill than wide cracks. Use an appropriate grinding device to open narrow cracks sufficiently. Fill deep cracks partially with sand or backer rod.

Preparing a hole for anchoring with PC-Concrete™

Using a rotary hammer drill and bit that is the appropriate size for the anchor diameter to be installed, drill the hole to the specified embedment depth. CAUTION: Always wear appropriate personal protection equipment (PPE) for eyes, ears and skin and avoid inhalation of dust during the drilling and cleaning process. Refer to the Safety Data Sheet (SDS) for details prior to proceeding. The hole may be dry or damp, but should be free of standing water.

Using oil free compressed air blow out the debris with an up/down motion for a minimum of 4 seconds/cycles (4X). Select the correct wire brush size for the drilled hole. Reaching the bottom of the hole, brush in an up/down and twisting motion for 4 cycles (4X). The brush should contact the walls of the hole. Blow the hole out once more to remove debris. Visually inspect the hole to confirm it is clean.

For outside repairs, be mindful of the temperature. Working outside or in a garage with a temperature of 10°c – 16°c may increase the length of time until full hardness.

Mixing

Mixing

PC-Concrete™ has a work time of 13-20 minutes so only mix as much product as you think you can apply in this time.

PC-Concrete™ is not considered a paste. It will flow or drip making vertical applications difficult. It is suitable for wall anchoring but not for filling large voids or cracks in walls.

To mix PC-Concrete™ you’ll need a spatula, putty knife or similar (something stiff) and probably a piece of scrap wood, cardboard or similar to mix on.

PC-Concrete™ should be mixed with equal amounts of part A (white) and part B (black). If purchasing the 1oz syringe equal amounts will be dispensed from the nozzle and you simply need to mix them together.
When properly mixed the epoxy will all be one consistent colour.

Remember to use a different spatula/tool in each tub or wipe it off with methylated spirit on a cloth/kitchen roll in between! This will ensure that the rest of the tubs remain good and uncured for future use. Store in a cool location.

Clean-up

Clean-up

After using PC-Concrete™ clean up using methylated spirit, acetone, rubbing alcohol (isopropyl alcohol) or lacquer thinner to clean tools and mixing surfaces before PC-Concrete™ cures.

Clean hands and skin with soap and water.

Cured epoxy can be removed by applying paint remover or paint stripper to soften the epoxy surface. Scratch off the softened epoxy. Repeat as needed.

Underwater & wet use

Underwater & wet use

Adhesion of PC-Concrete™ is best in dry conditions. There is a potential reduction in adhesive strength when applied to a wet surface, although the cure will not be affected.

Underwater repairs are difficult but it is possible to apply PC-Concrete™ underwater. We’d recommend practicing the following technique before attempting the repair:

1) Brush clean surface. Use methylated spirit or acetone to prep the surface, which will help PC-11® grab the wet surface.
2) Measure and mix PC-11®.
3) Apply it to a polythene sheet.
4) Wait 20 – 30 minutes for it to stiffen a little.
5) Press PC-11®/polythene patch into place.
6) Wait 24 hours and remove polythene sheet.

Finishing

Finishing

PC-Concrete™ is fast curing. Typical gel time in bulk is 13-20 minutes. Bolt down time at 21°c is 3-4 hours.

We recommend applying a premium stain-sealing primer/sealer to the repair before painting. Finish coats may otherwise interact with the cured PC-Concrete™ and potentially cause problems.

Video

Need more help?

If you’re not sure whether PC-Concrete™ is right for your repair project then please get in touch with us and we’ll do our best to help.

Phone: 020 8866 2462
Email: email@linesofpinner.co.uk