Skip to content Skip to navigation menu

CORROSION BLOCK
Corrosion Block

Stops corrosion on all metals

This anti-corrosion lubricant/penetrant stops or prevents corrosion on all metals. Its hydrophobic chemistry acts like an "off switch" to prevent dissimilar metal corrosion. Leaves a non-toxic, non-greasy, clean, clear protective film that blocks corrosion in a wide variety of applications, including marine electronics, batteries, circuit panels, standing rigging, fishing gear and inboard or outboard motors. Harmless to most plastic or rubber found on your boat.

  • 12oz. aerosol or 32oz. with Refill Sprayer
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Corrosion Block, 12oz. Aerosol 493817 20012
In stock online.

$19.99

Add to My List
Corrosion Block, 32oz. with Refill Sprayer 6871511 20032
In stock online.

$39.99

Add to My List

Product Description

Stops corrosion on all metals

This anti-corrosion lubricant/penetrant stops or prevents corrosion on all metals. Its hydrophobic chemistry acts like an "off switch" to prevent dissimilar metal corrosion. Leaves a non-toxic, non-greasy, clean, clear protective film that blocks corrosion in a wide variety of applications, including marine electronics, batteries, circuit panels, standing rigging, fishing gear and inboard or outboard motors. Harmless to most plastic or rubber found on your boat.

  • 12oz. aerosol or 32oz. with Refill Sprayer

Specs

REVIEW SNAPSHOT®

by PowerReviews
Corrosion Block
 
4.7

(based on 28 reviews)

Ratings Distribution

  • 5 Stars

     

    (23)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

95%

of respondents would recommend this to a friend.

Pros

  • Protects well (19)
  • Easy to use (16)
  • Weather proof (13)
  • Visually pleasing (6)

Cons

No Cons

Best Uses

  • Engine (17)
  • Outdoors (11)
  • Indoor (8)
  • Quick fix (7)
  • Wood trim (3)
    • Reviewer Profile:
    • Advanced (10), Casual/ recreational (6), Professional (6)
    • Was this a gift?:
    • No (19)

Most Liked Positive Review

 

Super product! We use ...

Super product! We use this product on electronic boards to prevent corrosion from direct water penetration, or humidity. We have literally submerged electronics treated with Corrosion Block underwater for several days with no...Read complete review

Super product! We use this product on electronic boards to prevent corrosion from direct water penetration, or humidity. We have literally submerged electronics treated with Corrosion Block underwater for several days with no negative effect to the circuit boards or components.

VS

Most Liked Negative Review

 

Not As Advertised

West Marine does not ship the spray bottle with the 32 oz container as advertised

West Marine does not ship the spray bottle with the 32 oz container as advertised

Reviewed by 28 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

Don't go near the ocean without it

By Brad

from St John, USVI

About Me Professional

Verified Buyer

Pros

  • Easy to Use
  • Protects Well
  • Weather Proof

Cons

    Best Uses

    • Engine
    • Outdoor

    Comments about Corrosion Block:

    Outstanding product for use on marine products or for anyone that wants protection from the sea blast

    • Was this a gift?:
    • No
     
    5.0

    Best product on the market. better than all other lubercants

    By Ole Dan

    from Tallahassee Florida

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy to Use

    Cons

      Best Uses

      • Quick Fix

      Comments about Corrosion Block:

      Anywhere there is a moisture problem door hinge, throttle cables, rusty bolts, battery cables electric motors

      • Was this a gift?:
      • No

      (1 of 1 customers found this review helpful)

       
      5.0

      SHO works great!

      By Wild Bill

      from Georgia

      Verified Buyer

      Comments about Corrosion Block:

      Sprayed the electrical components on the skeeter and sprayed the SHO motor block too.

      • Was this a gift?:
      • No
       
      5.0

      I bay this products frecuent

      By Pedro

      from Puerto Rico

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Protects Well

      Cons

        Best Uses

        • Engine
        • Outdoor

        Comments about Corrosion Block:

        This is a very good products

        • Was this a gift?:
        • No
         
        5.0

        The best stuff on the market

        By Keys kat

        from Fl keys

        About Me Professional

        Verified Buyer

        Pros

        • Easy to Use
        • Protects Well
        • Weather Proof

        Cons

          Best Uses

          • Engine
          • Indoor
          • Outdoor
          • Quick Fix

          Comments about Corrosion Block:

          They should call this stuff corrosion repair

          • Was this a gift?:
          • No
           
          5.0

          Great corrosion protection

          By squish47

          from cape coral florida

          About Me Casual/ Recreational

          Verified Buyer

          Pros

          • Protects Well
          • Weather Proof

          Cons

            Best Uses

            • Engine
            • Outdoor
            • Quick Fix

            Comments about Corrosion Block:

            great for engine corrosion protection and electrical connections

            • Was this a gift?:
            • No
             
            5.0

            I will buy This product again.

            By Jr.

            from South Florida

            About Me Advanced

            Verified Buyer

            Pros

            • Easy to Use
            • Protects Well
            • Weather Proof

            Cons

              Best Uses

              • electrical connections
              • Engine
              • fishing reels
              • seacock handles

              Comments about Corrosion Block:

              Just spray to area and it penetrates the metal for year round protection.

              • Was this a gift?:
              • No
               
              5.0

              very good product will purchast again

              By j rod

              from rochester ny

              About Me Advanced

              Verified Buyer

              Pros

              • Easy to Use
              • Protects Well
              • Visually Pleasing
              • Weather Proof

              Cons

                Best Uses

                • Engine
                • Outdoor

                Comments about Corrosion Block:

                good product

                • Was this a gift?:
                • No
                 
                4.0

                I have used it on my 39year old hatteras for 20years

                By Doc

                from Miami,fl

                About Me Advanced

                Verified Buyer

                Pros

                • Easy to Use
                • Fisses up on areas of white corrosion and leaves
                • Protects Well
                • Visually Pleasing

                Cons

                  Best Uses

                  • Indoor

                  Comments about Corrosion Block:

                  It attacks corrosion better than any product I have ran across in my 60 plus years of boating.

                  Service and delivery comments:

                  Friendly

                  • Was this a gift?:
                  • No
                   
                  5.0

                  INCREDIBLE PRODUCT!

                  By RBJ

                  from MIAMI FLORIDA

                  About Me Professional

                  Verified Buyer

                  Pros

                  • Easy to Use
                  • Protects Well
                  • Weather Proof

                  Cons

                    Best Uses

                    • ALL OF MY MOTORCYCLES!
                    • Engine
                    • Indoor
                    • Outdoor
                    • Quick Fix
                    • Wood Trim

                    Comments about Corrosion Block:

                    ALL POSITIVE! IVE BEEN USING IT FOR YEARS, ITS THAT GOOD!

                    Service and delivery comments:

                    EXCELLENT!

                    • Was this a gift?:
                    • No

                    Displaying reviews 1-10

                    Back to top

                    Previous | Next »