SEM Paints Black Rock-It XC Kit (46650) is a premium two-component urethane textured protective coating system designed to create a durable barrier over truck beds, recreational vehicles, utility trailers, industrial equipment, automotive restoration projects, and other vulnerable substrates. This black textured coating helps protect surfaces from mechanical impact, abrasive wear, corrosion, chemicals, road debris, and harsh environmental exposure. The 46650 Rock-It XC formula uses T_ True Tint Technology, a non-yellowing system engineered to maintain deep black color, gloss, and texture during long-term outdoor exposure. Its flexible 2K urethane composition allows the cured coating to expand, contract, and move with the underlying substrate without cracking, peeling, or losing adhesion. This kit is designed as a practical shake-and-shoot system with pre-measured bottles to reduce mixing errors and streamline application. It includes four 80% filled quart bottles of black liner material, one quart of Rock-It XC Catalyst, and one 71102 Economy Coating Gun. The coating can also be applied with HVLP spray equipment, heavy-material rollers, or nylon brushes to achieve different texture profiles. It is 50-state VOC compliant and adheres to a wide range of substrates, including steel, aluminum, galvanized steel, OEM paint, polyester fillers, E-coat, fiberglass, SMC, GRP, plastics, wood, and concrete. :contentReference[oaicite:0]{index=0} Key Features and Benefits: 2K urethane protection: Creates a tough textured barrier against impact, abrasion, corrosion, and environmental wear. T_ True Tint Technology: Helps maintain deep black color, gloss, and texture without yellowing. Flexible cured film: Expands and contracts with the substrate to help prevent cracking, checking, lifting, or peeling. Chemical resistance: Protects against exposure to fuel, oil, acid rain, road salt, petroleum products, and harsh solvents. Specifications: Manufacturer: SEM Products Product Name: SEM Paints Black Rock-It XC Kit Part Number: 46650 Product Type: Two-component textured protective coating kit Capacity: Kit with four 80% filled quart bottles of black liner material and one quart catalyst Color: Black Finish: Gloss textured Paint Type: Two-component / 2K urethane Coverage: 102 sq. ft. per gallon Pot Life: 30 minutes at 70¡F / 21¡C and 50% relative humidity VOC Compliance: 50-state compliant Substrate Adhesion: Steel, aluminum, galvanized steel, OEM paint, polyester fillers, E-coat, fiberglass, SMC, GRP, plastics, wood, and concrete Shipping Weight: 14.00 lbs Package Dimensions: 13.0 x 9.0 x 8.5 inches Application Methods: Included economy coating gun, compatible HVLP gravity equipment, heavy-material rollers, and nylon brushes Recommended Use: Truck bed coating, recreational vehicle protection, utility trailer coating, industrial equipment protection, automotive restoration, corrosion protection, underbody protection, sound dampening, and textured surface protection Included Components: 4 80% filled quart bottles of black liner material, 1 quart bottle of Rock-It XC Catalyst, and 1 71102 Economy Coating Gun How to Use: Clean the surface: Remove grease, wax, dirt, oil, and contaminants using a high-grade surface cleaner. Scuff the substrate: Abrade the surface with coarse sandpaper or an abrasive pad to create a mechanical adhesion profile. Protect base layers: Avoid sanding completely through protective layers such as E-coat where possible. Remove sanding debris: Blow off dust with clean compressed air and wipe the surface with a clean tack cloth. Add catalyst: Open one 80% filled quart bottle of black liner material and pour exactly 8 oz. of Rock-It XC Catalyst into the bottle. Do not over-catalyze: Keep the correct mixing ratio and avoid adding extra catalyst. Shake thoroughly: Reinstall the cap and shake the bottle vigorously by hand for at least two full minutes. Mix one bottle at a time: Catalyze only one bottle as needed because the product has a 30-minute pot life. Attach the coating gun: Remove the mixing cap, insert the pickup tube of the included 71102 Economy Coating Gun, and thread the gun adapter tightly onto the bottle neck. Check pickup tube placement: Make sure the tube extends to the bottom of the container for consistent material draw. Set spray pressure: Adjust air pressure according to the desired texture profile and application method. Apply light coats: Spray 2 to 3 light, even coats using smooth, overlapping passes. Maintain distance: Keep a consistent distance from the surface to ensure uniform texture buildup. Allow flash time: Wait 15 to 20 minutes between coats and avoid recoating while the previous layer is still wet or fluid. Benefits of Using SEM Paints Black Rock-It XC Kit (46650): Extends surface service life: Helps protect truck beds, trailers, equipment, and restoration surfaces from rust, corrosion, and wear. Improves impact resistance: Textured urethane barrier helps absorb abrasion, mechanical contact, and daily work damage. Reduces road noise: Dense coating layer helps dampen vibration, resonance, and cabin or enclosure noise. Simplifies application setup: Included coating gun removes the need to purchase a separate applicator for spray use. Reduces mixing errors: Pre-measured bottles support direct catalyst addition without separate mixing cups. Supports regulatory compliance: 50-state VOC compliance allows use in VOC-regulated regions. Maintains appearance: Non-yellowing technology helps resist fading, chalking, and color change over time. Works across many substrates: Broad adhesion profile supports use on metals, composites, plastics, wood, concrete, and prepared coatings. Features: UV resistance: Helps resist fading, chalking, and solar degradation during outdoor use. Sound dampening properties: Helps absorb vibration, panel resonance, and road noise when applied to sheet metal. Shake-and-shoot kit: Pre-filled bottles simplify catalyst addition and reduce material transfer mess. Application gun included: Comes with a 71102 Economy Coating Gun for immediate spray application.