General Cleaning:

  • Thoroughly pre-rinse with warm water to loosen and wash away surface material, grit and grime.
  • Using a soft microfiber cloth or moist non-abrasive sponge, gently wash with a mild diluted soap or detergent.
  • Rinse thoroughly with lukewarm clean water. To prevent water spots, thoroughly dry the glazing with a dry soft cloth.

Compatible Cleaners

The following cleaning agents are compatible with Makrolon Polycarbonate Sheet products when used
according to the manufacturer's recommendations:

• Top Job, Joy®
• Palmolive Liquid®
• Windex® Ammonia free

[Top Job and Joy are registered trademarks of Proctor & Gamble, Palmolive is a registered trademark of
Colgate Palmolive, Windex is a registered trademark of Drackett Products Company]


Points to Remember

  • Do not use abrasive cleaners.
  • Do not use high alkaline cleaners (high pH or ammoniated).
  • Do not leave cleaners sitting on polycarbonate for periods of time; wash off immediately.
  • Do not apply cleaners under direct sunlight or at elevated temperatures.
  • Do not clean your polycarbonate with any unapproved cleaners. When in doubt, seek guidance.
  • Using scrapers, squeegees, razors or other sharp instruments may permanently scratch your polycarbonate.
  • Always avoid dry rubbing/cleaning your polycarbonate, as sand and dust particles clinging to the exteriorof the glazing may scratch its surface.
  • An Anti-Static Canned-Air Ionizer can reduce electrostatic charge buildup on polycarbonate, consequently reducing dirt and dust buildup that would hinder cleaning.

Special Note:

The edges of your polycarbonate sheet are not protected with an abrasion and chemical resistance hard
coating. Do not allow cleaning solutions and solvents to pool along the edges for any length of time.
Always rinse edges thoroughly with generous amounts of lukewarm clean water.
Removing scratches from Makrolon polycarbonate sheet/window
Deep scratches and gouges made by sharp objects such as keys, screwdrivers, and knives cannot be
repaired. Fine scratches may be reduced in severity or cosmetically hidden by using a buffing compound
such as NOVUS 2 Plastic Fine Scratch Remover, followed by a cleaning and polishing agent like NOVUS 1.
However, for abrasion resistant coated products such as Makrolon AR, Makrolon 15 and Makrolon FC,
buffing their abrasion resistant coated surface is not recommended because doing so further damages the coating and these scratched sites worsen the condition. Once removed, the coating cannot be repaired and buffing sites may optically distort the window.

  • Strataglass recommends using only IMAR Products. IMAR Strataglass Protective Polish, IMAR Strataglass Protective Cleaner, and mild soap (preferably) IMAR Yacht Soap Concentrate) on Strataglass. (Strataglass no longer recommends the use of any other products, regardless of the manufacturer’s claims.) Use of harsh cleaners like “Simple Green and Orpine” will dull the curtains quickly. Using any other product(s) void the factory warranty.
  • NEVER use a wash-and-wax product on Strataglass.
  • WARNING – Use of Rain-X, Pledge, or Plexus on Strataglass appears to work for a short time but then dulls the surface and presents an “Orange Peel” effect. Do not use any of these products.

  • Use of cleaners, polishes, scratch removers, or any other product made for regular, uncoated vinyl will damage STRATAGLASS. Do not use these products.
  • DO NOT HANDLE STRATAGLASS (OR ANY VINYL) WITH SUNSCREEN ON YOUR HANDS! This will permanently cloud the vinyl where handled.


Strataglass recommends using IMAR Strataglass protective Polish every 1 to 2 months. In the interim, use IMAR Strataglass Protective Cleaner frequently.

Note: All new vinyl can easily get impressions in itself. We recommend new enclosures be left in place to the extent possible. If completely removed, enclosures must be interleaved with either acid-free paper (available from framing shops) or old sheets (the best choice) to prevent “pooling” in the glass, vinyl “seasons” over time and becomes less impressionable. Roll all curtains down and fasten in place nightly to keep perfect appearance. (Review at

Cleaning: Flush thoroughly to cool the surface and rinse away environmental abrasives. Wash with IMAR Yacht Soap Concentrate, or other equally gentle and high quality soap. Do not use Simple Green, Orpine or any other harsh cleaner – no detergents – they will dull the surface. Apply the soapy water to the clear vinyl section of the curtain with special purpose washing mitt or soft cotton cloths. Thoroughly rinse the soapy solution with fresh water and completely dry the curtains with a high quality chamois. ( makes several tools to make these tasks easier.) Your clear vinyl curtains should be washed whenever your boat is washed. After washing the curtains, apply IMAR Strataglass Protective Polish sparingly with small, light circular motions using a soft cotton cloth. Allow the polish to dry and then remove with a clean soft cotton cloth. Finally, lightly buff to a sparkling shine. Done. For routine maintenance between polishing, use IMAR Strataglass Protective Cleaner. Insure the clear vinyl panels are free of abrasives. Very lightly mist a soft cotton cloth. Lightly and briskly rub a manageable sized area and then lightly buff dry with another clean cloth. Done. We recommend using IMAR Strataglass Cleaner at least weekly but it’s so fast and easy you may want to do it daily. You’ll love the shine.

Restoring: Strataglass once recommended a restoration process but extensive experience shows actual damage cannot truly be repaired. If IMAR Strataglass Protective Polish cannot restore the clarity and shine, it may be time to consider replacing the enclosures. Please… Please…use Strataglass recommended procedures and products from the beginning.

General or Light Cleaning
To clean Sunbrella while still on a boat, follow these simple steps:

Brush off loose dirt.
Hose down.
Prepare a cleaning solution of water and mild soap such as Woolite or Dawn dishwashing liquid.
Use a soft bristle brush to clean.
Allow cleaning solution to soak into the fabric.
Rinse thoroughly until all soap residue is removed.
Air dry.
May not require re-treatment depending on the age of the fabric.

If stubborn stains persist, you can use a diluted bleach/soap mixture for spot cleaning of mildew, roof run-off or other similar stains (see Sunbrella’s Stain chart for specific recommendations).

Heavy Cleaning for Stubborn Stains and Mildew

Sunbrella fabric does not promote mildew growth, however, mildew may grow on dirt and other foreign substances that are not removed from the fabric.

To clean stubborn stains:

Prepare a solution of 1 cup bleach and 1/4 cup mild soap per gallon of clean water.
Soak affected area in solution for 15 minutes.
Remove stain with a sponge or clean towel.
Rinse thoroughly to remove all soap residue.
Air dry.

View the Sunbrella fabric Stain chart.

Remember to protect the area around your Sunbrella fabric if using a bleach solution. Carpet or other fabrics that are not Sunbrella may have an adverse reaction to the bleach.

If a boat cover is suitable in size for a washing machine, these steps should be followed:

Use mild soap.
For heavier stains add 1 cup of bleach to wash.
Wash and rinse in cold water.
Air dry. Never apply heat to Sunbrella.
Re-treatment for water and stain resistance will be necessary after machine washing.

Re-treating the Fabric

As part of the finishing process, Sunbrella fabrics are treated with a fluorocarbon finish, which enhances water repellency. This finish is designed to last for several years, but must be replenished after a thorough cleaning. Based on test results,
Glen Raven recommends 303 Fabric Guard™ as the preferred re-treatment product for Sunbrella fabrics. Fabrics should be re-treated after thorough cleaning or after five years of use.

Applying 303 Fabric Guard

303 should be applied to Sunbrella fabrics after each thorough cleaning, which typically removes the original finish and reduces the fabric’s water repellency.

Clean Sunbrella fabric, using one of the cleaning methods.
Allow Sunbrella to completely air dry.
Apply 303 Fabric Guard in a well ventilated area following instructions on the container.
Apply 303 in a thin, even coat and allow fabric to dry completely.
Apply a second thin, even coating of 303. (Two light coatings are more effective in restoring fabric water resistance than a single heavy coating.)
Note: A 15-ounce bottle provides coverage of up to 50 square feet of fabric.

​​​Yachtsman's Canvas


Plastic windows should be cleaned regularly. Be sure to hose or blow off loose dirt particles from surface and then use either plain water or a mild soap and water solution. Apply with a soft cloth or tissue to gently clean window. Never use harsh brushes or abrasives when cleaning plastic windows. 
The effect of sunlight combined with environmental pollution may alter the chemical structure of your plastic window, resulting in permanent discoloration and brittleness. 
To maintain the clarity and extend the life of your plastic window, it is recommended that you regularly wash dirt and salt off sheet surfaces, and clean regularly. 
Do not use harsh detergents when washing your plastic window, O’Sullivan recommends using mild detergent in water applied with a soft cloth or micro-fiber towel. 
Do not use cleaning products containing silicones or alcohol on press polished plastic windows. Some commercial vinyl care products and glass cleansers may contain these harmful ingredients. 
O’Sullivan does not endorse a specific cleaner. We have successfully evaluated numerous cleaners. IMAR and Novus Cleaner 1 have been evaluated and found to have no short-term detrimental effects. 
Do not rub the plastic window when dry – this may scratch the window. Always flood the window with water before gently wiping it with a damp, soft cotton cloth.