Rain-X® Multi-Surface Clear Water Sealer One Gallon (GRMS100 - DISCONTINUED)

Rain-X® Multi-Surface Clear Water Sealer Five Gallon (CRMS105 - DISCONTINUED)

Rain-X® Multi-Surface Clear Water Sealer - DISCONTINUED

Nothing Protects Concrete, Brick, Stone & Wood Better.

The elements can play havoc with outdoor surfaces, staining, warping cracking and chipping your patio, deck, and driveway.  But Rain-X® Multi-Surface Clear Water Sealer lets you Outsmart The Elements® with superior, deep-penetrating protection that goes on fast and easy, and lasts and lasts.

  • Rain-X® water-beading technology helps prevent water from penetrating and damaging surfaces –instead water simply beads up and just evaporates away
  • Rain-X® Multi-Surface Clear Water Sealer exceeds industry standards for water repellency by 47% and outscores the leading waterproofer by 19%
  • Only Rain-X® offers you Mold Armor® Antimicrobial Protection that shields the dried finish from damaging mold and mildew growth
  • With Rain-X® you can clean and seal surfaces the same day -- other products can make you wait up to 48 hours between cleaning and waterproofing
  • Rain-X® goes on milky white so you can see where you’ve applied, then dries clear
  • Unlike the leading competitor, Rain-X® Multi-Surface Clear Water Sealer won’t discolor concrete
  • Plus, Rain-X® Multi-Surface Clear Water Sealer cleans up with just soap and water

Available in one-gallon and five-gallon sizes.


Rain-X® Multi-Surface Clear Water Sealer’s superior beading technology keeps moisture
from penetrating and warping wood.

Surface prep:
1. Prior to application, use Mold Armor® Deck & Fence Wash to prepare surface by removing any contaminants such as mildew, dirt, oil and grease.  Follow instructions on the package.  2.  For severely weathered wood, or wood previously treated with a sealer, use a pressure washer to strip away the top layer.

1. Stir or shake well.  Pour into a roller pan or pump-up sprayer.  2. Apply using a synthetic paintbrush, paint roller or deck pad.  Apply evenly, coating the length of the board in the direction of the wood grain.  Maintain a wet edge by working small areas at a time to prevent lap marks.  Do not allow sealer to pool on surface.  If using a pump-up sprayer, always back brush for best results.  One coat will provide sufficient protection.  3. Allow to dry 4-8 hours before walking on the surface.  Dry time may vary due to temperature, humidity and surface porosity.

Helpful tips:
This product is intended for exterior surfaces only.  Allow new pressure treated wood and concrete to weather for at least 30 days before applying sealer.  Do not mix with any other products.  Do not apply over previously painted or stained surfaces unless old finish is removed or completely weathered away.  Surface and air temperature should be above 50˚F during application and drying.  Do not use when rain is expected within 8 hours.  Test in an inconspicuous area to ensure you are satisfied with the appearance, as the color will vary depending on surface type and age.  Goes on milky white so you can see where you applied for complete coverage then dries clear.  Avoid contact with surfaces not intended to be treated.  Cover adjacent surfaces with plastic before applying sealer.  To avoid overspray when using a pump-up sprayer, spray the deck floor and inside of railings first. Then either brush the outside rails, or cover the deck floor and spray the outside rails.  For even color, don’t stop once you start applying.  Allow 3 days after waterproofing before painting with an oil-based paint.  Use an oil-based primer before painting with any latex paint.

Clean equipment and overspray immediately with soap and water.  Dried product can be removed with mineral spirits.

Do not store below 40˚F.  Do not allow product to freeze.

Approximate coverage – sq. ft./gal.
Actual coverage will vary due to surface porosity, texture, dryness, and condition.

Rough Sawn   100
Smooth Sawn   200
Plywood   150
Wood Shingles  100

Rough (sidewalk)  250
Smooth (garage floor)  350
Smooth Block   50

BRICK    175

Why is it important to use Rain-X® Wood Protectors and Water Sealers?
Your exterior surfaces, wood, concrete, brick or stone, are all at the mercy of the elements. Rain, snow and ice can penetrate exposed surfaces causing severe damage. In fact, unprotected wood is like a sponge when it rains. The water seeps into the porous grains, causing the wood to swell. While the wood will dry, once that swelling/drying cycle begins, the wood is open to damage, like cracking, warping and discoloration. But, severe weather is only part of the problem. The sun can cause just as much damage as water. Over time, the damage to surfaces from exposure to the elements is easy to see – uneven and warped wood planks are often a sign that the wood wasn’t protected after construction. Plus, whenever moisture is present, you have the threat of mold and mildew growth. If left unprotected, outdoor surfaces can become black in places, creating a blotchy and unattractive appearance. Finally, the sun will cause the wood to fade with darker colored woods lightening and lighter colored woods turning gray. But, Rain-X® can help you Outsmart The Elements® preserving the beauty of your outdoor surfaces, and saving you the time, hassles and expense of costly repairs.

What are the significant advantages of Rain-X® waterproofers when compared to other products?
All Rain-X® waterproofing products exceed industry standards for water repellency, and outscore the leading brand. Our products are the only waterproofing products containing Mold Armor® Antimicrobial Protection to shield the dried finish from mold and mildew. Our products go on milky white so you can see where they’re applied, and they only need one application. They also feature easy soap and water cleanup and are safer than other similar products. Finally, Rain-X® can be applied the same day after cleaning the surface. That means your project can be started and finished in just one day.

What are the differences between Rain-X® Multi-Surface Water Sealer, Rain-X® Wood Protector, and Rain-X® Wood Protector Extended?
Rain-X® Multi-Surface Water Sealer is a clear waterproofer that protects wood, brick and concrete from warping, cracking and chipping. It offers unsurpassed waterproofing power, won’t discolor concrete, and features Mold Armor® Antimicrobial Protection to shield the dried finish from mold and mildew growth. 
Rain-X® Wood Protector offers you more than conventional waterproofers! In addition to protecting the surface from moisture and sun damage, it revives the beauty of wood with an ultra sheer tint in your choice of two colors, natural or cedar. It provides unsurpassed waterproofing power to prevent warping and cracking and Mold Armor® Antimicrobial Protection to shield the dried finish from mold and mildew growth. Rain-X® Wood Protector Extended is our longest lasting waterproofer! It revives wood color with an ultra sheer natural tint and prevents sun damage. It provides maximum waterproofing power to prevent warping and cracking and has 2X the protection from fading and graying. It protects decks for 2 years and siding and fences for 5 years and also offers Mold Armor® Antimicrobial Protection against mold and mildew growth.

With all Rain-X® waterproofing products, surfaces can be cleaned and waterproofed in one afternoon, and tools and equipment can be cleaned up with soap and water.

How can I tell if my wood surface needs protecting?
Quite frankly, all wood, regardless of age, needs protecting. However, you may not know if your wood has already been protected. Here’s a simple test. If you pour some water on the surface and the color darkens and the water is absorbed, it means the surface needs to be protected. If the water puddles together or forms beads, then the surface is protected.

Where’s the best place to start when protecting exterior surfaces?
No matter what the surface is, whether or not it’s pressure-treated, or how old or new it might be, the best place to start is with a good cleaning. Only with a thorough cleaning can you be assured that you get the maximum benefits of the protective coating you apply. The goal is to eliminate dirt and other contaminants that might prevent good penetration of a sealer. We recommend using Mold Armor® E-Z Deck & Fence Wash to clean and restore the natural color and beauty to wood. It’s easy because there’s no scrubbing and it contains special buffered renewing agents that will brighten wood surfaces within 10 minutes and restore it to a natural, weathered look. Also, if your wood appears to have mold stains, E-Z Deck & Fence Wash removes dirt and mold & mildew stains from wood decks, siding and fences.

If the wood is pressure treated does it still need protection?
Yes. The term “pressure-treated” simply means that the wood was chemically coated to prevent insect damage and wood rot. It is not waterproofed. In fact, during the process of pressure treating, wood becomes even drier than untreated wood, allowing for more and quicker water absorption. Most pre-treated lumber is not mold and mildew resistant, however, some do contain a mold inhibitor. Remember, Rain-X® not only seals out moisture with its superior water beading technology, it also features Mold Armor® Antimicrobial Protection

Do I need to let wood age before I protect it?
Most pressure treated wood is too damp to coat right off the bat, and many conifers have excess oils that need to evaporate out before they can be efficiently coated. So, if the wood is brand new or pressure-treated, allow it to weather for 30 days before sealing.

Do wood fences and furniture also need protection?
Yes. In fact, as a rule, all exterior surfaces need protection. Whether it’s a vertical surface or a horizontal one, wood is subject to abuse and exposure to the elements. And chairs have surfaces at all the right angles for weather to damage them. The sun can also cause as much damage as rain. We recommend using Rain-X® on all your exterior wood surfaces.

Can you prevent mold and mildew from growing on decks and fences?
Yes. Rain-X® Multi-Surface Water Sealer, Rain-X® Wood Protector and Rain-X® Wood Protector Extended all feature our exclusive Mold Armor® Antimicrobial Protection that shields the dried finish from mold and mildew growth. Please note: before sealing, you first need to remove all traces of mold with a good exterior cleaner, like Mold Armor® E-Z Deck & Fence Wash.

How can I tell if an exterior surface is being protected and the sealer is working properly?
With Rain-X®, it’s easy to see. Because of the advanced water beading technology in Rain-X®Rainx-MultiSurfaceWS-1Gal-GRMS100.pdf, water will actually bead up on the surface – and not penetrate the wood. You don’t need to wait for rain to check. After application, and once fully dried, according to the label, splash or drop some water on the surface. If the water forms beads and is not absorbed into the wood, it’s protected.

What is the best time of the year to seal an outdoor surface?
You can seal your deck in virtually any season. However, outside temperature is important to consider when using Rain-X® waterproofers. They should only be applied if the temperature is above 50° F. Also, it shouldn’t be raining or have rained in at least 8 hours priors to starting your project. If you are going to use a sprayer, we suggest picking a non-windy day.

The “Directions for Use” are included to help you better understand our product. However, they do not provide you with all of the information needed to use the product safely and effectively. Prior to using any of our products, you should always read the entire label including all cautions. The contents of this website, such as text, graphics, images, and other material contained on this website ("Content") are for informational purposes only. Although Barr believes it to be accurate, we make no representation, warranty, or guarantee, and disclaim any liability with regard to the accuracy or completeness of the information, or the results of any action taken by anyone who relies on the Content. The Content is provided on an "as is" basis. Never disregard professional advice or delay in seeking it because of something you have read on this website. Reliance on any information provided by Barr, Barr employees, others appearing on this website is solely at your own risk. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, call your doctor or 911 immediately. 

©2014 W.M. Barr & Company, Inc. Memphis, TN