Collinite 920 Fiberglass Marine Cleaner - 64oz
Collinite 920 Fiberglass Marine Cleaner - 64oz

Collinite 920 Fiberglass Marine Cleaner - 64oz MPN - 920-64OZ

$41.10
$45.21
$41.10

MPN : 920-64OZ

SKU: 97851
Availability: In stock
Product type: Automotive/RV | Cleaning,Boat Outfitting | Cleaning
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Subtotal: $41.10
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Medium-cut fiberglass preparation
Mild–moderate oxidation care
One 64 fl oz container
Collinite 920 Fiberglass Marine Cleaner - 64oz

Collinite 920 Fiberglass Marine Cleaner - 64oz MPN - 920-64OZ

$45.21 $41.10
Collinite 920 Fiberglass Marine Cleaner - 64oz

Collinite 920 Fiberglass Marine Cleaner - 64oz MPN - 920-64OZ

$45.21 $41.10

    Collinite 920 Fiberglass Marine Cleaner is currently titled Heavy Duty Cleaner and Medium Cutting Compound by the manufacturer. Mariners Warehouse SKU 97851 supplies one 64 fl oz container. Its purpose is pre-wax fiberglass cleaning and mild-to-moderate defect removal rather than routine shampoo washing alone.

    The compound addresses film, chalkiness, discoloration and tough stains while preparing suitable fiberglass for follow-up wax. It does not itself establish UV/weather protection, repair deep damage or provide universal automotive clear-coat correction. Assess the actual substrate, coating and remaining condition before choosing the amount of correction.

    Test a hidden area first. For the manufacturer’s hand method, place a nickel-size amount on a suitable applicator and work a section no larger than 2 × 2 feet, stopping just before the product starts to dry; remove residue with microfiber. Do not dry-buff. Machine application requires exact product, pad and tool instructions rather than treating one webpage speed as a universal setting. Apply a separately selected compatible wax or sealant after the preparation stage.

    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.

    PRE-WAX SURFACE PREPARATION

    Prepare Weathered Fiberglass for Follow-Up Protection

    Use these checks when selecting Collinite 920 Fiberglass Marine Cleaner 64 oz. Match the task, finish, application process and package to the project rather than choosing from the product name alone.

    1. Chalky Fiberglass

      Inspect mild or moderate chalkiness before selecting a fiberglass oxidation remover. Test a small section to establish the appropriate correction approach.

    2. Surface Discoloration

      Differentiate widespread weathering from an isolated stain. A marine cleaning compound and a rinse-off stain treatment have different roles.

    3. Pre-Wax Preparation

      Use gelcoat pre wax cleaner selection to plan the complete job. Cleaning and correction come before the chosen follow-up protection step.

    4. Hand Application

      Prepare clean applicators and removal towels and follow the current section-size guidance. Remove residue before the product dries as directed.

    5. Machine Technique

      Match the pad and machine instructions to No. 920 and your finish. A universal RPM or OPM setting is not supplied for every machine.

    6. Protection After Cleaning

      Review the appropriate finishing product once correction is complete. Do not treat a cleaner-only step as a promise of lasting wax protection.

    Fiberglass Compounding or Routine Washing?

    The 64 fl oz No. 920 listing supplies more product in one container than the separate 16 fl oz option. Choose quantity after assessing the fiberglass condition and a test area; a larger bottle does not change the small-section working method or guarantee a fixed area of coverage.

    No. 920 is a pre-wax cleaner with cutting action. No. 435 Streak Fixer serves localized streak and fresh-water-spot maintenance with a protective contribution. Select the care stage by the actual condition, and follow No. 920 with separately selected wax where appropriate. Review the Collinite 920 Fiberglass Marine Cleaner - 16oz MPN - 920-16OZ as a separately sold option.

    Choose Your Fiberglass Preparation Route

    Compare package sizes, explore the cleaning category or ask about the surface condition.

    1. View Collinite 920 16 oz

      Compare this listing with the linked product. Review its exact package, intended use and current instructions before choosing.

      View Collinite 920 16 oz

    2. Explore Hull & Fiberglass Cleaners

      Compare cleaning formats and tasks across the collection. Keep Collinite 920 fiberglass marine cleaner selection tied to your actual surface condition.

      Browse Hull Cleaners

    3. Ask About Your Cleaning Project

      Describe the finish, chalkiness and staining, plus whether you plan hand or machine application.

      Ask About This Cleaner

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    What Customers Say

    Restores chalky gelcoat and lifts tough oxidation easily

    Collinite 920 Fiberglass Marine Cleaner 64oz made preparing our fiberglass hull for waxing remarkably fast. The liquid cleaner effortlessly cuts through heavy chalking, severe oxidation, water spots, and embedded grime without needing aggressive compounds.
    David Miller Verified buyer
    August 2026

    Ideal pre-wax cleaner for smooth gelcoat preparation

    Applied this 64oz fiberglass cleaner before laying down a coat of Collinite wax. It cleaned deep into the gelcoat pores, stripping away dull film and stain lines to leave a perfectly prepped surface for long-lasting protection.
    Christopher Evans Verified buyer
    July 2026

    Removes tough waterline stains and surface discoloration

    This marine fiberglass cleaner works fast on yellowing waterlines and scuff marks along the hull. It restores color and depth to weathered fiberglass without scratching or damaging the gelcoat finish.
    Mark Thompson Verified buyer
    June 2026

    Saves hours of heavy compounding during spring prep

    An essential product for annual boat detailing. The 64oz half-gallon bottle offers plenty of coverage for larger hulls, and the mild abrasive cleaner brings back gloss on faded gelcoat with minimal physical effort.
    Brian Reynolds Verified buyer
    May 2026

    Well-packaged container and high-performance formula

    The 64oz bottle arrived promptly and securely sealed with no leaks. Applied it directly to oxidized areas along the topsides, and it restored the finish to clean condition effortlessly.
    Steven Vance Verified buyer
    April 2026

    Frequently Asked Questions

    What does SKU 97851 include?
    One 64 fl oz container. The manufacturer/pack code is 920-64OZ.
    Is 920 a cleaner or a compound?
    The manufacturer identifies both roles: a fiberglass cleaner with medium-cut compound properties.
    Does it add UV/weather protection?
    It is a preparation product, with separate follow-up wax or sealant planned for protection.
    What condition is it intended to address?
    Mild-to-moderate oxidation, chalkiness, discoloration and selected tough fiberglass stains, subject to exact finish approval.
    What hand working area is specified?
    Manufacturer guidance gives a section no larger than 2 × 2 feet with a nickel-size amount on the applicator.
    Should I let it dry before buffing?
    No. Manufacturer guidance says to finish just before it dries and never dry-buff.
    Does 920 treat every clear-coat scratch?
    No. Automotive clear-coat correction or deep/heavy damage is not established by its fiberglass preparation role.
    How can I confirm the right selection?
    Contact Mariners Warehouse with SKU 97851, code 920-64OZ, your actual material or equipment and the intended task.

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    Need help comparing Collinite 920 Fiberglass Marine Cleaner, SKU 97851, MPN 920-64OZ? Share your actual surface and finish, intended task and preferred package quantity. These details help us understand your selection question before you order.

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