TIPS: Be sure to have: A plastic tray to put towels with ejected foam into. When you open a cartridge of injectadeck you have already drilled your holes in the center of the soft spot exposing the cavity or airspace to fill. Remove the blue cap, then remove the plugs before you put the nozzle on and install the threaded collar. When loading into the gun MAKE SURE the gun's discs are seated proerly in the cartridge end caps, if you catch an edge it can flip the plunger and let the product out of the rear of the cartridge. Touch Drill 1/8" tiny vent hole at the edge of your soft spot to let the gasses vent out of the floor or the last hole you fill could blow out product with the gasses if you're stepping down a bulge. Inject your deck in 3 rounds, using all your tips and you wont miss a soft spot. Wear your safety goggles and set up your cleaning supplies prior; (Acetone, scotchbrite, fabric cleaner, paper towels)
1. Set up – Gather all the items you will need for the job. The Injectadeck kit, acetone, Marine RX Epoxy, a roll of paper towels, personal protection, follow MSDS PPE data on the acetone too. Don’t bother cleaning the deck, it’s not required, mask it off WELL.. Make sure your boat deck is level. You can mask off over the drilled holes. drill holes 8" apart. THIS PRODUCT IS NOT MEANT FOR COIN SIZED SOFT SPOTS. It does not "SOAK IN" to anything, it fills the airspace. You can shoot it over or under the wood between the fiberglass layer, or fill the void left by the rot process.
2. Soft spot location - Walk your deck with a pencil marking your soft spots and your stringer locations (floor joists). Feel the outside edge of the soft spot with an X in the center, lay out a hole pattern 8" or more. Probe your drill holes with a wire coat hangar. You can drill as many as you like, its just more to plug later with white sandable epoxy Marine RX.. If you have a soft spot on a stringer (floor support), drill into it, probe violently, and inject it, the fiberglass its wrapped in will contain the product. You can fill delamination and cavaties left by drained water.
3. Drilling - Drill a 5/32"-¼” hole in the center of the soft spots thru one side of the fiberglass to access the "center core". You can install the product over or under the wood layer or simply fill the void left by the wood rotted away. Use a stiff wire or section of coat hanger to probe and pry leak paths inside the deck in all directions 6" from the hole. Moisture and wood pulp are a good sign, dry rotted wood can take wetting for better adhesion. The foam is drawn to wet areas and travels along it. If your waterlogged Drill a 1/8” hole thru your entire deck in the center of the worst soft spot. This will allow excess trapped water out of the deck, if you choose not to do this the foam will bubble the excess water out the top of your drill holes. Not an issue but wait a day before you plug with Marine RX. Try to drill the tiny “thru hole” in an area that will allow the dripping water to get to the bilge if possible.
4. Prep - . Be sure to DRILL ALL OF YOUR HOLES FIRST. Lightly spray water if your dry rotted (Rare) and let set for 10 minutes. The more water it has the more solid the foam gets. Dry the deck surface and mask off the entire area around your 1/4 - 5/16" holes. Use a razor blade to cut your tip to fit in the drilled hole. Masking entire area with newspaper prevents the product from adhering to the deck when you turn your back. Load the Injectadeck cartridge in the Injectadeck gun, remove the cartridge plugs (RETAIN) and install the mixing tip and collar.. Before injecting, you can pump a little out on cardboard till the last two inches of tip turns WHITE Once you squeeze the gun and it flows thru the tip, use what you need, set it aside and in 2 minutes the tip is clogged, if you wish to restart, change the tip. Squeeze against a clogged tip or stuck tube or a full drill hole and its the only way to bend or break the gun. WARNING; A partially clogged tip could deliver an 80/20 soft foam mix not a 50/50 mix! It could also bend the gun! Dont over pressurize the deck or it can blow out all over the place.
5. Inject - the product into the deck in two stages, squeeze the product in until resistance is felt in the trigger. Wait 2 seconds and lightly squeeze the trigger again until resistance is felt then stop. Be ready to PLUG THE HOLE. If two part liqid tries to come out, plug the hole to keep it in the floor untill expansion begins then remove the plug or your finger. The gun has a release lever, this takes the pressure off the cartridge, press the release before removing the tip from the hole. Do not FORCE the product into the hole unless very little is coming out. Pressure pumping will cause the product to shoot between the underside fiberglass sheet and the wood (a good thing). If punps a couple ounces in? dont pressure pump. Trust the spread, it will spread out and firm the deck up. Small areas just need a little squeeze of an ounce or so then stand on it to spread it and prvent bulging. PRESSURE PUMPING A CLOGGED TIP CAN BEND THE GUN
6. Moving from hole to hole – You must work rapidly to prevent the foam from curing in the tip. For less mess and waste, press the trigger release and as you pull the tip from the hole, cover it with a gloved finger and move to the next hole, plugging filled holes for a few minutes is best to keep it in the deck. Your detailed masking job will allow you to work, not clean. Two pumps till resistance is felt, release trigger, plug mix tip with finger and move to the next hole, then repeat till all holes are filled. Small spots need a smal amount, dont be afraid to stand on it to spread the product and prevent bulging. You can shape your floor for 60 seconds, get some help. Dont let liquid come out of the drill hole, FOAM OK, NOT LIQUID 2 PART? Cover the hole keep it in the floor. Once expansion starts remove plug or finger, you can step on it to move it around.and prevent bulging. 4 minutes later, Bad bulge? jump up and down on it within the first 10 miinutes uncured, it will flatten, also over time bulging goes down..
7. Clean up – It helps to have a good masking job and an assistant to go behind the injector wiping up the excess with acetone and a rag. You must clean the excess immediately off and surfaces before it cures. After clean up during the 20 minute cure you will see a small puff of foam exiting the injection site. The deck in the video was not masked for clarity. you have 2 minutes to acetone wipe it up. Use lots of tape, paper towels and I use a cat litter tray to stow ejected product with paper towels. I tear off towels to "Dam Up" the foam, if I inject too much. Injectadeck stains yellow, be prepared and well masked.
8. Plugging – Plug your injected holes with your fingers or rubber plugs for a minute or untill the liquid product reacts and starts foaming. A few minutes later, go around to all your holes and remove the puff of foam. There are several ways of plugging your injection site. The best way is using Marine RX white epoxy. Another way is to use a fiberglass repair kit called “Bondo 420 Fiberglass epoxy repair kit” with cloth and mat included. ($15 walmart, autozone, etc) You can copy your non-skid pattern with crayola “air dry molding clay” ($8) if you like, to recreate the non-skid pattern on the floor and camouflage your drilled holes, then touch up paint to match. I roll the deck with new paint personnaly.
9. Touch Up – Once you have your deck injected and you feel an additional soft spot. Drill a hole and fill that soft spot anywhere you feel one. There is no limit on the amount of holes you drill, just keep 4” away from any other holes to prevent cracking. 8 inches is the norm and plug with white sandable epoxy. You can sand and I like to roll new topside paint on the larger jobs.
10. Storing unused portion – As soon as your holes are all injected, press the trigger release, unscrew the colng tip. Take the two cartridge plugs you removed and place them back into the tip of the cartridge. Now screw on your cap and the next time you need to use it, just put on a fresh mixing tip. Injectadeck cannot be mixed and installed without the special mixing tip, so order extras. If you forced the product thru a clogged tip, or full drill hole, it will force the product by the plunger and it will harden into a "stuck tube", this cannot be reused, this also will bend/break the gun if you try. WARNING drill a tiny vent hole at the edge of your hole pattern to prevent blow outs or deck over pressurization.
TIPS: If you study the product and have read the brief description of the nature of expansion foams. You will understand the product fills "voids" it will never "soak in" to a solid object. You will not want to set the gun aside ever, use what you need in one application, not more. Squeeze the trigger slowly and firmly, watch the product flow, this is not caulk, this is liquid. Press that silver tab on the gun before you lift the gun from the floor. Be prepared to step on the area and shape the foam, expansion ceases in about 4 minutes, excess product will come out and any bulge transfers to the underside. For perfectly level floors lay down sections of plywood with 3" access holes to the drill holes in your deck. You get the idea. See a bulge after 2 minutes? jump on it before it cures spread expanding foam before it cures. Shoot in a few ounces and wait, trust the expamsion.
In the photo below it shows the holes about 10" apart or more. You feel along with your foot for the center of a soft spot and drill a hole. Mask all of the newly drilled holes off with tape to newspaper or plastic drop cloth to protect the deck. Look at this, you know this is going to work!
Be careful with all chemical products, misuse can and will injure people, pets, finishes, etc.
Questions? Call and ask Chris; 727-768-7509