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WEST SYSTEM
#407 Low Density Filler

407 Low-Density filler is a blended microballoon-based filler used with WEST SYSTEM Epoxy to make fairing putties that are easy to sand or carve. Reasonably strong on a strength-to-weight basis. Color—dark red/brown. 

Filler Selector Chart

Product Models
Description WM Model # MFG Part # Availability Price Quantity  
#407 Low-Density Filler - 15.2 OZ 382812 407-15
In stock online.

$45.99

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#407 Low-Density Filler - 4.0 oz 318410 407-5
In stock online.

$19.99

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#407 Low-Density Filler - 14 LB 344960 407-B
In stock online.

$474.99

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Product Description

407 Low-Density filler is a blended microballoon-based filler used with WEST SYSTEM Epoxy to make fairing putties that are easy to sand or carve. Reasonably strong on a strength-to-weight basis. Color—dark red/brown. 

Filler Selector Chart

Specs

REVIEW SNAPSHOT®

by PowerReviews
West System#407 Low Density Filler
 
4.7

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (7)

Cons

No Cons

Best Uses

No Best Uses
    • Reviewer Profile:
    • Advanced (5)
    • Was this a gift?:
    • No (5)

Reviewed by 7 customers

Displaying reviews 1-7

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5.0

#407 Low Density Filler works Awesome!

By Garrett

from Newberg Oregon

About Me Casual/ Recreational

Verified Buyer

Pros

  • Able to Fair very thin sections
  • Easy to Use
  • Mixes Easilly
  • Sands Easily
  • Very Smooth Texture

Cons

    Best Uses

    • Fairing on Fiberglass layups
    • Filling very small gaps, cracks or holes
    • Quick Fix

    Comments about #407 Low Density Filler:

    I use this for fairing on Foam/Fiberglass layups. It fills well and sands easily to it makes the finished product beautiful and looks great under paint.

    Service and delivery comments:

    Purchased at the store.

    • Was this a gift?:
    • No
     
    5.0

    I would buy this product again and again.

    By Joe Wis

    from Spring Lake, MI

    About Me Advanced

    Verified Buyer

    Pros

    • Easy to Use

    Cons

      Best Uses

        Comments about #407 Low Density Filler:

        West System products are the best epoxy available.

        • Was this a gift?:
        • No
         
        5.0

        Exactly the thing to ensure quality repairs to my surfboards

        By Freedom Won Boardworks

        from Emerald Isle, NC

        About Me Advanced

        Verified Buyer

        Pros

        • Easy to Use

        Cons

          Best Uses

            Comments about #407 Low Density Filler:

            The perfect material for repairing surfboards

            • Was this a gift?:
            • No
             
            4.0

            #407 Low Density Filler

            By AW

            from NC

            About Me Advanced

            Verified Buyer

            Pros

            • Easy to Use

            Cons

            • costly, comp. to sawdust
            • Messy

            Best Uses

              Comments about #407 Low Density Filler:

              Good epoxy filler, easy to sand/fair. Don't drop the can when you open it, you'll not be able to save what "goes flying away."

              • Was this a gift?:
              • No
               
              5.0

              407 Low Density Filler

              By AW

              from New Bern, NC

              About Me Advanced

              Verified Buyer

              Pros

              • Easy to Use

              Cons

                Best Uses

                  Comments about #407 Low Density Filler:

                  good filler for epoxy, easier to fair than colloidal silica, and cheaper. Good strength.

                  • Was this a gift?:
                  • No

                  (2 of 3 customers found this review helpful)

                   
                  4.0

                  Useful product for filling or smoothing

                  By Ken

                  from Grand Teton National Park, WY

                  About Me Casual/ Recreational

                  Verified Buyer

                  Pros

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

                  Cons

                  • Messy

                  Best Uses

                  • Indoor
                  • Outdoor
                  • Quick Fix

                  Comments about #407 Low Density Filler:

                  I had one gripe - the material had opened in shipment and its fine dust made a mess. I suspect that that is the exception rather than the rule. It did its job - filling holes and irregularities with a surface that was sandable without too much effort.

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Did the job exactly

                  By Aaron

                  from Amherst MA

                  About Me Advanced

                  Verified Buyer

                  Pros

                  • Easy to Use
                  • Protects Well
                  • Visually Pleasing
                  • Was right for the job
                  • Weather Proof

                  Cons

                  • IT is what it is

                  Best Uses

                  • Outdoor
                  • Repair and construction

                  Comments about #407 Low Density Filler:

                  I am restoring an old wooden boat and the West System works, in this case repairing hull damage and delaminating wood. It dries and works and otherwise performs as advertised and generally well.

                  Displaying reviews 1-7

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