About J-B Weld KwikBond 15 Filler

Sep 27, 2026

J-B Weld KwikBond 15 Professional Grade Filler is a premium, quick-drying two-component adhesive and filler system designed for long-lasting, waterproof repairs and paint preparation. It bonds and preps surfaces including metal, drywall, fiberglass, wood, brick, stone, and concrete for home, bathroom, and automotive uses. Instructions cover temperature requirements, working time and cure time, mixing and measuring guidance (50:1 by weight or visual guide), surface cleaning and sanding steps, and finishing with priming and paint according to manufacturer recommendations.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

J-B Weld KwikBond 15 Overview

Professional Grade Features

Product Amounts

Safety Warnings and First Aid

Directions: Clean, Prep, Measure, Mix, Apply, Cure, Sand

Storage and Disposal

Warranty and Product Details

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DANGER: Filler: EYE AND SKIN IRRITANT, HARMFUL IF INHALED, MAY CAUSE ALLERGIC REACTION, MAY CAUSE CANCER, SUSPECTED OF CAUSING HARM TO UNBORN CHILD, CAUSES DAMAGES TO ORGANS THROUGH PROLONGED OR REPEATED EXPOSURE. Hardener: EYE AND SKIN IRRITANT, HEATING MAY CAUSE FIRE, MAY CAUSE ALLERGIC SKIN REACTION.
Contains: Filler: Styrene, titanium dioxide, ethylbenzene, ethylene glycol. Hardener: Dibenzyl Peroxide. Both: Use only as directed. Keep container tightly closed when not in use. Do not breathe mist or vapors. Use in a well ventilated area. Wear protective gloves, clothing, face, hearing and eye protection. Do not get in eyes, skin, hair, or clothing. Do not eat, drink or smoke when using this product. Wash thoroughly a er handling. See SDS for additional information.
FIRST AID: IF EXPOSED OR CONCERNED: Get medical advice or a􀀞ention. IF INHALED: Call a POISON CENTER or doctor if you feel unwell. Take o􀀝 contaminated clothing and wash it before reuse. IF ON SKIN: Wash with plenty of water. If skin irritation or rash occurs: Get medical advice or a􀀞ention. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice ora􀀞ention. Store in a well ventilated place. Keep cool. Keep container tightly closed. Dispose uncured material as a household hazardous waste.
KEEP OUT OF THE REACH OF CHILDREN

WARNING: Cancer and Reproductive Harm [www.P65Warnings.ca.gov](www.P65Warnings.ca.gov).
Limited Warranty: Product liability is extended by J-B Weld for replacement cost of product only.
Assembled in USA with domestic and globally sourced material.
Part No. 40254
J-B Weld Company | P. O. Box 483 | Sulphur Springs, TX USA | 75483 [or www.jbweld.com](or www.jbweld.com)
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PROFESSIONAL GRADE
Repairs and paint preps on:
Metal | Drywall | Fiberglass | Wood | Brick | Stone | Concrete

• Stain-Free
• Tack-Free
• Strong Adhesion
• Easy to Sand
• Paintable
• Waterproof
Dries Yellow
NET WT. Filler 7 lb (3.18 kg) Hardener 2.75 oz (78 g)
DANGER: IRRITANT, HARMFUL IF INHALED, MAY CAUSE AN ALLERGIC SKIN REACTION, MAY CAUSE CANCER. Read cautionson side of can. | | | | | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | | | | | | | | | About J-B Weld® KwikBond 15 Filler: KwikBond 15 Professional Grade Filler is our premium, quick-drying, two-component adhesive and ﬁller system that provides long-lasting, waterproof repairs and paint prep on metal, drywall, ﬁberglass, wood, brick, stone and concrete for home, bathroom and automotive applications. PLEASE READ ALL INSTRUCTIONS BEFORE PROCEEDING WITH PROJECT Important tips: • Use above 50°F. Best if used in ambient (65-80°F) temperatures. Curing takes longer in colder temperatures. • Working time of mixed ﬁller is 3-4 minutes at 75°F. • Mix ﬁller and hardener on a non-absorbent surface such as a plastic or metal tray. • Keeping the mixture spread thinly will help prevent air bubbles and give you a longer working time. Directions: 1 Clean: Ensure surface is cleaned with soap and water, then wiped with appropriate solvent (such as Acetone or Xylene) . Let dry completely. 2 Prep: Use 80 grit sandpaper to sand up to 2 inches surrounding the damaged area down to the bare substrate. Remove all dust from sanding. 3 Measure: Stir ﬁller and knead hardener tube Visual Measuring Guide thoroughly before using. Measure only enough ﬁller to use in the 3-4 minute working time. For 1. Create a circle of ﬁller 1/2” high. an accurate ratio of ﬁller to hardener, either 2. Add a bead of hardener follow a 50:1 ﬁller-to-hardener ratio by weight across the diameter of the ﬁller. (ex: 50g ﬁller to 1g hardener) or follow the visual guide to the right. 4 Mix: Using a paint spreader, mix the ﬁller and hardener in a spreading, pressing motion (not in a stirring motion), for 1

FAQs

What is the cure time and what finishing steps follow?

Cure time is 15 minutes, then sand with 80 grit to shape and 180 grit for finishing before priming and painting per the manufacturer’s recommendation.

Sep 27, 2026

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