SEM Plastic Adhesion Promoter - 16oz Aerosol Can
SEM Plastic Adhesion Promoter - 16oz Aerosol Can

SEM Plastic Adhesion Promoter - 16oz Aerosol Can MPN - 39863

$45.46
$50.01
$45.46

MPN : 39863

SKU: 109322
Availability: In stock
Product type: Automotive/RV | Accessories,Boat Outfitting | Adhesives/Sealants/Tapes
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Subtotal: $45.46
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Clear plastic adhesion treatment
For documented raw olefin plastics
Stocked label / size check required
SEM Plastic Adhesion Promoter - 16oz Aerosol Can

SEM Plastic Adhesion Promoter - 16oz Aerosol Can MPN - 39863

$50.01 $45.46
SEM Plastic Adhesion Promoter - 16oz Aerosol Can

SEM Plastic Adhesion Promoter - 16oz Aerosol Can MPN - 39863

$50.01 $45.46

    SEM 39863 Plastic Adhesion Promoter Aerosol, MPN 39863 and Mariners Warehouse SKU 109322, supplies adhesion treatment before compatible topcoating of suitable raw olefin plastics. Improve topcoat adhesion on documented suitable raw olefin-based plastics with clear SEM 39863. Confirm the plastic, coating system, stocked package size and matching label/TDS application procedure before choosing.

    Plastic Adhesion Promoter creates the specified adhesion-treatment step between a suitably prepared raw plastic and a supported following coating. It is intended for documented olefin-plastic refinishing, subject to the actual material and coating system. It is a clear surface treatment rather than a structural adhesive, crack filler, cleaning solvent or final protective clearcoat. A broad raw-plastics description does not establish compatibility with every plastic or make surface cleaning optional. The store source names a 16-ounce aerosol, while SEM’s current product page lists a 20-ounce aerosol container for 39863. Confirm the stocked can and its net contents before ordering; these descriptions are not treated as a verified weight conversion.

    Identify the raw plastic and following coating and resolve the applicable stocked-can instructions before spraying. SEM’s linked TDS describes cleaning interior plastic with SEM Soap or exterior plastic with Scuff & Clean and a gray scuff pad, rinsing and allowing it to dry, then using the specified compatible final cleaner with a clean lint-free towel in one direction. Select that cleaner for the actual plastic; do not assume a solvent is universally suitable. The store/product summary lists one light coat and a 15-minute flash, while the TDS linked from SEM’s current 39863 page specifies one medium-wet coat, complete flash and a 3–5-minute topcoat reference. Confirm the applicable label and matching SEM instructions for the stocked formula before use; do not combine these application schedules. Under the linked TDS, if topcoating exceeds 24 hours, scuff, tack and reapply as directed. Adhesion improves with time, so follow the completed coating system’s reinstallation and handling requirements. Follow the label/SDS for ventilation, protective equipment, ignition control, spray-tip care and storage.

    Clear Product Details

    Review the 16 oz gel format, specifications and application directions.

    Surface Guidance

    Check fiberglass, gelcoat and finish suitability before use.

    Product Support

    Ask about your surface and stain type before ordering.

    Shipping & Returns

    Review shipping information and return conditions before purchase.

    Application Guides

    Match the Repair Material to the Substrate and System

    Check 39863 by its actual clearcoat or plastic-adhesion-treatment role. Confirm substrate, coating system, finish, stocked label, preparation, application and exact package before choosing.

    1. Identify an Adhesion-Treatment Task

      Use the documented promoter on suitable raw olefin-based plastic before a compatible coating. Structural bonding, cleaning and the final finish are different tasks.

    2. Match Raw Plastic and Topcoat

      Identify the actual plastic and complete refinish system. Do not infer every plastic or already-coated surface needs this treatment, or that a promoter replaces preparation.

    3. Confirm the Stocked Package

      The store source names a 16-ounce aerosol, while SEM’s current product page lists a 20-ounce aerosol container for 39863. Confirm the stocked can and its net contents before ordering; these descriptions are not treated as a verified weight conversion.

    4. Clean and Prepare the Actual Material

      Follow the applicable instructions for soap/scuff cleaning, rinse/dry and final compatible lint-free wipe. Select the cleaner for the exact plastic and coating system.

    5. Resolve Coat and Flash Instructions

      The store/product summary lists one light coat and a 15-minute flash, while the TDS linked from SEM’s current 39863 page specifies one medium-wet coat, complete flash and a 3–5-minute topcoat reference. Confirm the applicable label and matching SEM instructions for the stocked formula before use; do not combine these application schedules. The linked TDS gives a scuff/tack/reapply step if topcoating exceeds 24 hours.

    6. Count Supplies and Allow Adhesion to Develop

      One SEM 39863 Plastic Adhesion Promoter aerosol. The store source names a 16-ounce aerosol, while SEM’s current product page lists a 20-ounce aerosol container for 39863. Confirm the stocked can and its net contents before ordering; these descriptions are not treated as a verified weight conversion. Cleaner, scuff pad, any separate repair materials and topcoat are not included. This is one can, not a 12-can case. Follow completed coating-system reinstallation guidance; no universal ready-to-handle time is assigned.

    Plastic Adhesion Promoter or Matte Clearcoat?

    SEM 39863 is a clear adhesion promoter for documented suitable raw olefin plastics. SEM 40923 is a matte 1K HS clearcoat used as a finishing layer in supported refinish systems. Their clear appearance does not make them interchangeable: the promoter prepares the adhesion interface, while the clearcoat supplies the selected final sheen.

    Choose each step from the complete plastic/coating procedure. Do not use the promoter as a substitute for final clear or assume a matte clearcoat eliminates raw-plastic preparation. Confirm the 39863 stocked label, package and application schedule before including it in a repair system. Review the SEM 40923 1K HS Clear Matte 20 oz Aerosol as a separately sold option.

    Continue Your Repair, Sealants & Trim Selection

    Choose by the actual repair function, substrate, profile and application instructions, then compare exact package contents.

    1. Compare Repair, Sealants & Trim

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    2. Explore Wash & Surface Care

      Review cleaning products for a separate surface-care task. Check the exact material and label; category placement does not establish adhesive-preparation compatibility.

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    3. Explore Automotive & RV Accessories

      Return to the parent collection for another maintenance or replacement task. Check every item’s own requirements.

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    Frequently Asked Questions

    What does SKU 109322 include?
    One SEM 39863 Plastic Adhesion Promoter aerosol. The store source names a 16-ounce aerosol, while SEM’s current product page lists a 20-ounce aerosol container for 39863. Confirm the stocked can and its net contents before ordering; these descriptions are not treated as a verified weight conversion. Cleaner, scuff pad, any separate repair materials and topcoat are not included. This is one can, not a 12-can case.
    What size is the 39863 aerosol?
    The store source names a 16-ounce aerosol, while SEM’s current product page lists a 20-ounce aerosol container for 39863. Confirm the stocked can and its net contents before ordering; these descriptions are not treated as a verified weight conversion.
    Which plastics are documented?
    SEM names olefin-based raw plastics. Identify the actual material and following coating and confirm the complete system; no universal all-plastics compatibility is established.
    Is it the final clear finish or a repair glue?
    It is an adhesion-treatment step before a compatible topcoat. It does not supply the final finish, fill cracks or establish a structural plastic bond.
    What cleaning procedure should I check?
    The linked TDS describes SEM Soap/interior or Scuff & Clean/exterior with a gray scuff pad, rinse/dry and a specified compatible final cleaner using a lint-free towel in one direction. Choose the cleaner for the actual plastic.
    Should I use one light coat with 15 minutes flash?
    The store/product summary lists one light coat and a 15-minute flash, while the TDS linked from SEM’s current 39863 page specifies one medium-wet coat, complete flash and a 3–5-minute topcoat reference. Confirm the applicable label and matching SEM instructions for the stocked formula before use; do not combine these application schedules.
    What if topcoating is delayed?
    The linked TDS specifies scuffing, tacking and reapplying if topcoating exceeds 24 hours. Use the actual stocked formula’s matching instructions; follow the complete coating system’s reinstallation requirements as adhesion develops.
    How can I confirm the right selection?
    Contact Mariners Warehouse with SKU 109322, MPN 39863, your exact product MPN, component or substrate material, existing coating, application method, working conditions and required package size.

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