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If the Meguairs Color Restorer doesnt get the gelcoat where you want it in the initial step you can drop back to some wet sandpaper in the 800 to 1000 grit range then graduate to the Meguairs Color Restorer. The abrasive foam disc is highly effective at distributing pressure evenly across the surface to ensure a consistent finish.
While you can wet-sand by hand using a rubber block we suggest using a pneumatic or electric dual-action DA orbital sander to make the job faster.
What grit sandpaper for wet sanding gelcoat. Once you have the clean surface and soaked up sandpaper you can start the process of wet-sanding on it. The sandpaper that you will use to wet-sand on the surface should be 400 grit. Sandpaper of this grit proves to be perfect for buffing out a clear finish.
Assuming you have nothing similar to orange peel. You can easily knock down most deep scratches with 400 grit paper. Then move on to 600 800 and 1000.
Always keep a small stream of running water while sanding. The key is between grits clean the area thoroughly. Clean your orbital sander.
You want to remove ALL excess grit from the larger sized paper. If you do want to wet sand it 1200 grit will get you to where light compound does. Start with 600 400 is too course 800 might not take you down quick enough.
Use a sanding sponge and lots of slightly soapy water rinsing your paper out often. 3M is about the best you can get at a reasonable cost they make great products. Start with 600- to 800-grit wet-dry sandpaper.
Pros we talked with prefer Sunmight 3M and Mirkasandpapers. They dont load up as quickly and last longer. While you can wet-sand by hand using a rubber block we suggest using a pneumatic or electric dual-action DA orbital sander to make the job faster.
Clean the surface with water to remove all of the compound. Be sure that all of the compound is off. This is very important.
You dont want any compound to get under the 1000 to 1500 grit wetsand paper. Us 3m if you can. After sanding use a more agressive compound.
What you used isnt very coarse. I use a product called cutting cream. If the Meguairs Color Restorer doesnt get the gelcoat where you want it in the initial step you can drop back to some wet sandpaper in the 800 to 1000 grit range then graduate to the Meguairs Color Restorer.
Wet-sand the cured gelcoat with 320-grit wetdry paper on a soft sanding block. Confining work to the immediate repair area continue wet- sanding with 600-grit. You will notice when the sand paper looses its bite it dont take long get a new piece buy a lot of paper as it will save you time.
Use a rubber squeegy in good light to see if the peel is gone then go to 2000 and do it again then 3000 if your going for that. Sandpaper Grit Sizing. If you are looking to remove a previous material such as gelcoat.
Begin sanding your surface with a 150 grit or lower. A low grit number determines the coarseness of the sandpaper which will give you the ability to remove materials and coatings. Initially I went from 400 grit to 1000 grit wet-and-dry sandpaper then buffed and polished with 3M Finesse with a bufferpolisher.
After wiping clean then to 999 of people the results were truly amazing. The boat looks showroom quality in most areas. The purpose of the grits in wet sanding is speed.
Each finer grit must remove previous coarser grit scratches to the point that they are totally removed. 600 grit-sand paper scratches can be removed with buffing compound bring the area to a shining luster. 400 grit scratches cannot be buffed out.
Sand randomly or you can cut. Oct 4 2007. Should i wet sand prior to buffing faded gelcoat.
Yes start with something aggressive like 150 dribble or spray water often to clear the paper. Then progress finer to 400 600 1000 1500 or 2000. Each step removes scratches from the previous.
However cutting after 3000 will require less stages of polishing than ending after 1000. We believe that you can start and end with 1000 grit 90 of the time if your using the right paper. Our favorite is Mirka Abralon.
This type of abrasive is made from mesh and features a built in interface pad. Sandpaper is waterproof silicon carbide. Use for sanding gelcoat back to original show room finish.
Each package includes 9 x 11 sheets of each of the following. 240 320 400 600 and 1000 grit. Once the gelcoat has fully cured sand the repair smooth wet sanding works particularly well with gelcoat.
You can start with 220-grit sandpaper and for a really slick surface finish with at least 400- or 600-grit. Refine the 800 grit sand scratch with a 1500 grit sandpaper. Use the 1500 grit sandpaper with a dual action sander running the sander at a speed of 900 1100 Max.
When sanding use a 50 overlap with each pass of the sander. Remember to use a soft interface pad with the 1500 grit abrasive when sanding. Step 4 Buffing Buff the 1500 grit sand scratch with 3M Perfect-It Gelcoat Heavy Cutting.
Once the gelcoat has fully cured sand the repair smooth wet sanding works particularly well with gelcoat. You can start with 220-grit sandpaper and for a really slick surface finish with at least 400- or 600-grit. The abrasive foam disc is highly effective at distributing pressure evenly across the surface to ensure a consistent finish.
These discs can be utilised for both dry and wet sanding since the advanced design keeps the material from holding moisture and becoming waterlogged. The S6 Sponge Discs are available in grits from P500 to P4000. The oxidation on my boat has gotten pretty bad and to make it worse its a black boat.
I got some 3m rubbing compound and 800 grit 1000 grit and 1500 grit sandpaper. Started with the 800. After sanding i rubbed the compound in until the swirls were gone.
Wet-sand the cured gelcoat with 320-grit wetdry paper on a soft sanding block. Confining work to the immediate repair area continue wet-sanding with 600-grit paper until nearly even with surrounding gelcoat. Thank you for checking out Great Escape Marine here in Minneapolis Minnesota.
This video details the wetsanding process we use here at Great Escape Marine t. 2500 grit sandpaper only for extreme cases of oxidation For wet sanding only if youve exhausted all other options read the instructions below for wet sanding and have consulted a.