303 Products Marine Fabric Guard – Water Repellent & Stain Shielding Fabric Spray, Safe for All Outdoor Upholstery, Simple & Easy to Use, Protectant Spray for Boats, 1 Gallon

303 products are my go-to for all fabric cleaning and protection. This 303 was easy to use and when following the instructions I ended up with a stain free, high quality, beautiful restored 23 year old canvas cover. Needless to say the color did not run or stain from this product and I have full confidence the UV Protection will help keep this cover in good shape for many more years. Couldn't be happier as a new cover of this quality would cost over $4K. This cover came out looking so good my neighbors thought it was brand new.

We have the Ikea Ektorp sectional with White slipcovers in the sunroom at our airbnb/vrbo vacation rental. We have 2 covers so things can be swapped/cleaned as needed but since IKEA no longer makes 100% cotton slipcovers & the new ones can’t be bleached I wanted to protect our old version for as long as possible.Its sunroom location is directly off the pool area which means its heavily used and requires CONSTANT stain treatment & washing. This is life and we’re happy people enjoy are enjoying their vacation but it does get exhausting pre-treating & removing stains every 4-7 days.A lot of the issues seemed to come from wet bathing suits, suntan oils, and drink spills so I figured waterproofing might prevent wet suit color transfer & allow guests time to clean up spills before they soak in.So far this has done an AMAZING job at prolonging the time between washings!!I haven't noticed any change to the fabrics color, feel, or durability after using this religiously. A few of the cushions did develop some yellow areas that bleach hasn’t taken out but I don't know if that's a result of using this for over a year or if it was caused by a guest.—TIPS / STEPS—These are steps I’ve found work best for our use.1. Transfer product into HEAVY DUTY spray bottle (such as those found at Home Depot)•Low-quality sprayers deteriorate after 1st use2. Launder Items 1-2 days prior to treatment:•Treat stains w/ shout•Use as LITTLE un-scented detergent possible•2nd Wash: Just Borax & Vinegar•2 Rinse Cycles•Dryer*The manufacturers online info is very specific about the product only working if there’s NO residual product leftover in fabric. Yes...it's exhausting, but its made a HUGE difference in how well this works compared to just applying after normal wash/dry.3. Lay down clean cotton drop-cloth in driveway & place clean items on top.4. Put on gloves & a respirator/mask if sensitive to fumes. Also make sure no animals or children are nearby while spraying. *See bottom for further info about why this is important*5. Spray 1st side thoroughly.•Paying special attention to the edges & piping since these areas collect dirt & color quickest.6. Allow items to dry in sun for remaineder of the afternoon7. After they’ve fully dried I place them in a sterile bag & put it in the garage overnight.8. The next morning I Repeat steps 3-6 for the opposite side.•It’s entirely possible to do both sides in a single day...but I’ve found the chemical off-gassing lingers FAR LESS TIME if each side is sprayed & allowed to sun-bake for at least 5 hours before treating the opposite side.**GLOVES, MASK & NO ANIMAL / CHILDREN**Yes, there’s a very strong chemical smell that lasts 8+ hours. This is due to the ‘odorless mineral spirits’ content which is used as a carrier to help the waterproofing to penetrate into the fabric fibers. However unlike the name implies, OMS is far from odorless.So, PLEASE BE SURE to use this:•Outdoors in a well ventilated area•Away from all Animals & Children•Plenty of daylight time to allow for the mineral spirits to evaporate/off-gas.➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖For the sunroom we also use a Dash & Albert indoor/outdoor rug on top of the large jute rug, this has been a lifesaver and worth its weight in gold when trying to keep a rental spotless! It allows spills to be easily cleaned or even bleached out when necessary. We’ve spot treated between guests & removed to fully bleach during spring cleaning...both options are quick and easy with any stains coming right up.*Since posting the original review above I’ve also started using this on the rentals drop-cloth cabana style curtains on the outdoor pergola.Although we don’t see a lot of rainfall here in San Diego....the overnight condensation and random rainstorms meant they would only last 4-5 months before mildew & mold could no longer be bleached out and they needed replaced.After putting 4 new ones up I sprayed front/back to see if it might slow mildew. It worked well initially but after about 2 months it seemed to accelerate the issue since the new curtains were heavily spotted with mildew while the old bleached ones weren’t.This may be due to my quick spray rather than following the guidelines I use for the slipcovers. The drop cloths are heavily bleached before making the curtains so this residue + treatment might have made a bad combo. I plan to try again while following the slipcover steps to see if it works better, will update my review if so.

This is the best protectant on the market. we live in AZ and spray our cushions with it every year. We do have Sunbrella fabric, but this is added protection. The furniture is over 10 years old and looks new. When freshly sprayed, you could dip a cushion in the pool and it will come out dry.

This product (High Tech Fabric Guard 30674) works great - 100% of the water now beads up and my cloth top looks better than new !!!My Situation:The very first time my brand new, light beige cloth convertible top got wet I realized it came from the car dealer and/or factory either untreated and/or seriously under treated because water just soaked right into the cloth as evidenced by the darker cloth color when wet.End Result:After applying two coats of this product 100% of the water beaded-up and rolled right off the top. Nothing soaked in at all - zero wet spots on the cloth top. (Since the top is a light beige color any wet spots would show up slightly darker in color.) Any water that didn't roll off the top was absorbed using The Absorber 51149 sponge-cloth available on Amazon or at WalMart.Process:1) I gently cleaned my cloth convertible top using 303 Fabric Top Cleaner (303-30550). To do this I first rinsed the top with fresh water, then sprayed the cleaner on & gently scrubbed using a very soft brush (I used Star Brite Soft Yellow Wash Brush 040013 available on Amazon). A stiffer brush or too vigorous scrubbing could damage the fabric, scuffing the threads and creating a fuzzy look to the fabric. I cleaned the top in slightly overlapping areas about 18” x 18”.2) I rinsed the top and allowed it to dry thoroughly.3) Using a 2" paint brush and small container of 303 High Tech Fabric Guard 30674, I applied the Fabric Guard brushing it on in a manner similar to painting. By overlapping slightly I made certain I applied the product to every square inch of the top.4) I allowed the top to dry several hours and applied a second coat of Fabric Guard.Notes:1) When applying the clear Fabric Guard liquid with a 2" paint brush it will start to have a slightly white/foamy appearance - this will go away completely and the product will dry clear.2) After each application I noticed a VERY slight, very fine clear crystalline residue on my cloth top. You had to look very closely to see it - it had just a little bit of sparkle to it in the sunlight. This brushed off quickly and easily & probably would have blown off the first time I drove the car.3) Some reviewers seem to have issues relating to getting the product on the car itself saying it was hard to remove. I didn’t have this problem. The few times that I over-brushed or got small drops Fabric Guard on the car itself I simply gently wiped it with a soft paper towel and it didn't damage anything or leave any residual coating. It seemed to wipe off 100% with a soft paper towel.4) READ THE LABEL !!! The first paragraph covers some surfaces that you CANNOT use this product on without causing damage. These include rubber, vinyl, clear vinyl, plastics, etc. Since the product's Material Safety Data Sheet lists the contents as Petroleum Distillates, just a wild guess but prolonged contact with this product may have a solvent effect on materials such as vinyl or plastic.5) I wouldn't purchase 303 Fabric Cleaner again – I think a bucket of hot water with a scant squirt of Dawn dish detergent would do just as good of a job. Of course, you will need to completely rinse the top and allow it dry thoroughly before applying 303 Fabric Guard.6) I have no idea how long my cloth top will remain water repellant after applying Fabric Guard. I plan on doing this process every 6 to 8 months or sooner if I notice any water being absorbed by the cloth top.