Dr. Fixit Crack-X Paste
Ready-to-Use Acrylic Crack Filling Paste for Hairline Cracks in Walls and Ceilings
Authorized Project Distributor — Dr. Fixit by Pidilite | Space Arc Engineering, Ghaziabad
Product Overview
Dr. Fixit Crack-X Paste is a ready-to-use (pre-mixed) acrylic polymer-based crack filling and surface repair compound manufactured by Pidilite Industries for filling hairline cracks, fine cracks, surface defects, and small holes in concrete and plaster walls and ceilings before interior and exterior paint application. The product is supplied in a tub or cartridge format in a creamy paste consistency that can be applied directly from the pack with a putty knife or flexible scraper without any mixing, dilution, or preparation. The acrylic polymer base of Dr. Fixit Crack-X Paste provides flexibility in the cured repair — the cured compound can tolerate minor thermal and structural movement of the substrate without re-cracking, unlike rigid cement-based crack fillers that are brittle and re-crack when the substrate moves thermally. The product is formulated to be sandable (the cured compound can be sanded smooth with abrasive paper after drying for a flush, feather-edged repair invisible under paint), paintable with all common interior and exterior paints (emulsion, distemper, texture, and enamel), and compatible with both interior and exterior wall applications when overcoated with appropriate exterior-grade paint. Dr. Fixit Crack-X Paste is primarily used at the final stage of building finishing, just before paint application, to repair the inevitable network of fine thermal shrinkage cracks that develop in freshly plastered walls during the initial drying period, and to fill surface imperfections (honeycombs, nail holes, trowel marks, and blow holes in the plaster) that would be visible under the final paint coat. The product is also widely used in renovation projects to repair cracked paint and plaster on existing walls before repainting. Space Arc Engineering supplies Dr. Fixit Crack-X Paste for painting and finishing contractors, property renovation specialists, and individual homeowners undertaking renovation projects throughout Delhi NCR, Ghaziabad, and Uttar Pradesh.
Applications
- New construction — filling thermal shrinkage hairline cracks in fresh plaster before first paint coat
- Renovation — repairing cracked paint and plaster on existing interior walls before repainting
- Exterior wall crack filling — fine cracks in external render before exterior emulsion or Raincoat
- Ceiling crack repair — filling hairline cracks and surface defects in plastered ceilings
- Surface levelling — filling trowel marks, blow holes, and surface imperfections in plaster
- Nail and screw hole filling — repairing holes in plaster after removal of wall fixings
Key Advantages
- Ready to use — no mixing or preparation, apply directly from pack with putty knife
- Flexible acrylic — cured compound tolerates minor thermal movement without re-cracking
- Sandable — sand to a smooth flush finish after drying for invisible repair under paint
- Paintable — compatible with all water-based and solvent-based paints after drying
- Interior and exterior use — suitable for both internal plaster and external render repairs
- Fast drying — surface dry in 30 to 60 minutes, sandable in 2 to 4 hours in Indian conditions
Technical Data
| Type | Ready-to-use acrylic polymer-based crack filling and surface repair compound |
| Form | Pre-mixed paste — no mixing required, apply directly from tub or cartridge |
| Crack Width Range | Hairline to 3 mm wide cracks — wider cracks require cement mortar repair first |
| Application Method | Putty knife, flexible scraper, or palette knife — press into crack, feather edges |
| Drying Time | Surface dry in 30 to 60 minutes at 30 degrees C — sandable at 2 to 4 hours — 24 hours before painting |
| Pack Sizes | 200 gram tube, 1 kg tub, 5 kg pail — for small repairs to large-area application |
Get a Quote
+91 9999155255 | info@space-arc.com | Space Arc Engineering, Sahibabad, Ghaziabad
Frequently Asked Questions
What is the correct application procedure for Dr. Fixit Crack-X Paste on a hairline crack in an interior plaster wall, and how many coats are needed for a deep crack to achieve a flush surface before painting?
The correct application procedure for Dr. Fixit Crack-X Paste depends on the width and depth of the crack being treated. For hairline cracks (less than 1 mm wide), the procedure is as follows. Step 1 — Prepare the crack. Widen the crack slightly with a crack opener or pointed tool to create a V-groove profile approximately 2 to 3 mm wide and 2 to 3 mm deep. This V-groove profile ensures that the Crack-X Paste has sufficient depth to key into the crack and form a durable repair rather than being applied as a thin surface skin that may detach. Blow out any dust from the crack with compressed air or a dry brush. Step 2 — Clean the area. The plaster surface on both sides of the crack must be clean, dry, and free of chalking paint, dust, oil, or loose plaster. Remove all loose plaster and chalky paint to a sound substrate. Step 3 — Apply first coat of Crack-X Paste. Open the tub or pierce the cartridge. Using a flexible plastic or metal putty knife, apply Dr. Fixit Crack-X Paste into the crack by pressing firmly across the crack direction, filling the V-groove completely. Apply a thin smear of Crack-X Paste on the plaster surface 50 to 75 mm on each side of the crack to feather the edge of the repair into the surrounding plaster. Smooth the surface as flat as possible at this stage. Step 4 — Allow to dry. Allow the first coat to dry completely — typically 1 to 2 hours at 30 to 35 degrees C for a thin hairline crack. Note that Crack-X Paste shrinks slightly as it dries (approximately 10 to 15 percent by volume), so the filled crack will show a slight concave or sunken profile after drying. For deep cracks (2 to 5 mm wide), this shrinkage may leave the repair visibly recessed below the surrounding plaster surface after the first coat. Step 5 — Second coat (for cracks deeper than 1 mm). Apply a second coat of Crack-X Paste over the dried first coat to restore the flush surface profile, again feathering the edges into the surrounding plaster. Allow to dry fully. Step 6 — Sand flush. Once the final coat is fully dry (2 to 4 hours minimum, preferably overnight), sand the repair area with 120 to 150 grit sandpaper in circular motions to achieve a smooth, flush surface level with the surrounding plaster. Wipe off sanding dust with a clean dry cloth. Step 7 — Apply primer and paint. Apply one coat of exterior primer (for external walls) or interior wall primer (for internal walls) over the repaired area and the surrounding plaster, then apply the final paint coat uniformly over the full wall surface. The primer ensures uniform sheen and paint film thickness across the repaired and unreached areas, preventing the repaired area from appearing as a visible patch in the final paint finish.
Source Dr. Fixit Crack-X Paste for Your Project
Space Arc Engineering is an Authorized Project Distributor for Dr. Fixit by Pidilite Industries serving Delhi NCR, Ghaziabad, Noida and Uttar Pradesh.
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