Kapci 1k Filler Grey (1L)

Kapci 1K Grey Filler is a fast-drying, high-build primer filler designed to smooth out fine scratches, pinholes, and minor surface imperfections before topcoating. Formulated with premium nitrocellulose combination resins, it provides excellent fill, rapid drying (touch dry in 30 minutes), and effortless sanding for a flawless, professional finish.

  • Fast Air Dry: Sandable in just 30 minutes at 20°C

  • High Fill & Holdout: Easily covers minor defects without sagging

  • Smooth Sanding: Feather-edges effortlessly with fine abrasives

  • Simple 1:1 Mix: Mixes 1:1 with Kapci 525 NC Thinner

£19.50 inc. VAT
£16.25 ex. VAT

2 in stock

Additional Information

Rapid Drying Kapci 1K Grey Filler Performance

Achieve a smooth, flawless finish on automotive bodywork repairs with Kapci 1K Grey Filler. Formulated with high-grade nitrocellulose (NC) combination resins, this fast-drying 1K filler helps technicians level fine surface imperfections, shallow scratches, and annoying pinholes before topcoating. Whether executing localized spot repairs or preparing larger panel sections, this professional primer filler delivers exceptional film build and seamless feather-edging every time.

Its high-build capability ensures excellent holdout and adhesion across prepared substrates, providing a reliable foundation for subsequent automotive paint applications. Because this fast-acting primer filler dries rapidly at room temperature, bodyshops and DIY enthusiasts can significantly cut down waiting times and finish jobs much faster.

Key Benefits of Kapci 1K Grey Filler

  • Ultra-Fast Drying Time: Dries to touch in as little as 30 minutes under ambient conditions, allowing for rapid sanding and quicker turnaround times.

  • Easy Sanding Properties: Feather-edges smoothly with fine abrasives, minimizing manual effort while leaving a flawless transition between coats.

  • Excellent Fill and Holdout: Fills fine sand marks, minor scratches, and surface porosity without sagging, shrinking, or swelling.

  • Versatile Compatibility: Applies cleanly over thoroughly degreased existing finishes, polyester putties, and properly prepared metal substrates.

Product Specifications

  • Base Resin: Nitrocellulose (NC) Combination Resin

  • Color: Neutral Grey

  • Mixing Ratio: 1:1 with Kapci 525 NC Thinner

  • Recommended Coats: 2 full coats for 80–90 microns dry film thickness

  • Flash-Off Time: 5–10 minutes at 20°C between coats

  • Air Dry Time: 30 minutes at 20°C

  • Oven Bake Time: 15 minutes at 60°C

  • Recommended Topcoats: Compatible with standard 1K automotive topcoats

Maximizing Results with Kapci 1K Grey Filler

To achieve the best possible performance from Kapci 1K Grey Filler, surface preparation remains essential. First, clean the repair zone completely and degrease the area thoroughly before spraying. Next, sand the target panel with fine abrasive paper to create an effective mechanical key for optimal coating adhesion.

When spraying this refinishing product, maintain a steady gun distance and apply 2 uniform coats, honoring the recommended 5–10 minute flash-off window between passes. Allow the film to cure completely—either 30 minutes under ambient conditions or 15 minutes inside a spray booth oven—before dry or wet sanding with P600–P800 paper. For technical guidance on surface preparation standards, you can refer to the official HSE Automotive Refinishing Guidelines.

Once sanded, wipe away all dust particles with a clean tack cloth to complete your prep work prior to applying the final topcoat.

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