Does the 10oz. Silicone require purchasing a special caulk gun? I was previously shipped tubes made of metal with pull tap opening like on a soup can

I was concerned as well but it has an internal plastic follower cup that a traditional caulking gun presses against: Similar to the traditional caulk tube. The additional metal seal helps to prolong the storage of the adhesive sealant.

Has anyone tried mixing a color pigment into the glue before application? Will this effect the cure?

I have not and can only advise you give 3M support line a call and ask them and if you can I am sure they will tell you which coloring to use. I would not just mix in any color you don't know how the glue will react to it. Give 3M a call I am sure they will be glad to help.

My kitty put a couple of pin hole sized punctures in my scuba bcd, causing a small, slow leak. will this patch it?

Yes it will. Allow five days to cure. Don’t use the fast cure.

05205 3 Oz Black Marine Adhesive Sealant Permanent Bonding Sealing

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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R1273

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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Description

⚓ Seal your legacy with 3M’s toughest marine adhesive – don’t let your boat settle for less!

MULTI SURFACE MASTER - Ideal for deck housings, hull fittings, portholes & more – versatility that wins
WEATHERPROOF WARRIOR - Resists saltwater, UV, and harsh weather above & below waterline 🌊
STRESS ABSORBING FLEX - Elastomeric bond absorbs vibration, swelling & shock for lasting performance
GENEROUS WORKING WINDOW - Extended open time lets you perfect every application without rush ⏳
UNBREAKABLE MARINE SEAL - Permanently bonds wood, fiberglass & metal for ultimate durability ⚓

3M 05205 Marine Adhesive Sealant 5200 is a black polyurethane formula engineered for permanent, flexible, and waterproof bonds on marine substrates like wood, fiberglass, and metal. It withstands saltwater and weathering, cures fully in 4 days, and maintains strength under vibration and shock, making it the go-to sealant for professional-grade marine repairs and installations.

Specifications

ASIN	B000Y89JC8
Best Sellers Rank	#71,286 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #166 in Silicone Sealers
Brand	3M
Brand Name	3M
Color	Black
Compatible Material	Fiberglass, Wood
Customer Reviews	4.6 out of 5 stars 1,613 Reviews
Global Trade Identification Number	00051135052051
Included Components	marine sealant
Item Dimensions	36 x 124 x 224 millimeters
Item Form	Liquid
Item Type Name	marine sealant
Item Weight	4.8 Ounces
Item dimensions L x W x H	36 x 124 x 224 millimeters
Item weight	4.8 Ounces
Manufacturer	3M
Material	Polyurethane
Material Type	Polyurethane
Model	5200
Number of Items	1
Number of Packs	1
Part Number	051135052051
Style	5200
Style Name	5200
Surface Recommendation	Floor, Wall
UPC	051135052051
Unit Count	3 Milliliters
Water Resistance Level	Waterproof
Water resistance level	Waterproof

Reviews

S**R

Excellent

Delivered on time, well packaged. Used on the boat transom to fill in transducer screw holes. It's easy to use. It does take a week to fully cure but works perfectly. I recommend for anyone working on a boat. Use a caulk tube plug to seal and save unused product.

28.04.2021

D**N

long set time- unmatched flexibility and toughness

I actually use this to seal up busted drysuit seams. It's thick, but pliable, and takes forever to set, but in that time it seeps into the neoprene pores and fills anything from problematic pinholes to blowouts. stuffs tough and flexible, just a pain to use because of the cure time. worth it though

17.03.2026

J**L

Buena calidad

Tarda en curar pero cuando lo hace queda bien aderido

19.06.2023

W**E

Good product for under water use.

Used this for mounting a transducer plate on the transom of my 14’ boat.

11.09.2023

C**Y

New

Great product

12.08.2019

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R1273

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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