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SEM

SEM 150mm 6" Sanding Disc 40 Grit - Box of 50

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$61.24
$50.99
(You save $10.25 )
SKU:
CWR108627
UPC:
646786960499
Condition:
New
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Description

SEM 150mm 40 Grit Sanding Discs (50pk) | Boat Supply Store

Tackle demanding surface preparation and material removal on your vessel with SEM 150mm (6") 40 Grit Sanding Discs. Engineered with 'precision grain technology,' these discs offer superior cutting speed and extended longevity for significant tasks like paint stripping or hull shaping. The semi-open ceramic blend on a durable film backing ensures consistent scratch patterns and exceptional edge wear, making them ideal for preparing fiberglass or composite structures for refinishing, crucial for maintaining hull integrity in harsh marine environments.

Key Features

  • Aggressive 40 grit for rapid material removal
  • Extended disc life with ceramic blend technology
  • Uniform finish with consistent scratch patterns
  • Durable film backing for resilience
  • Fast cutting action for efficiency
  • Exceptional edge wear resistance
  • Precision grain for controlled abrasion
  • Bulk 50-disc box for cost-effectiveness

Specifications

Product Specifications
Diameter150mm (6")
Grit40
Quantity per Box50
Abrasive TypeSemi-open ceramic blend
Backing MaterialFilm
Grit GradeStandard P grade

Who This Is For

Marine professionals and DIY enthusiasts undertaking significant surface preparation, paint removal, or shaping on boat hulls, decks, or other composite materials where aggressive, fast-cutting abrasion is required.

How It Compares

FeatureSEM 150mm 40 Grit Sanding Discs (50pk)Competitor
Diameter150mm (6")6 inch, 6 inch
Grit4040+, 40
Abrasive TypeSemi-open ceramic blend3M Ceramic Precision Abrasive Grain, Aluminum Oxide
Backing MaterialFilmD-weight paper, Net
Quantity per Box5050, 50

Common Concerns Answered

Is this disc too aggressive for my project?

The 40-grit rating provides aggressive material removal, ideal for significant surface preparation. For very fine finishing, a higher grit disc may be more appropriate. Users find it excellent for initial material reduction on fiberglass or gelcoat.

Will I need dust collection with these discs?

Yes, dust generation can be significant with aggressive sanding. Proper dust extraction is highly recommended to maintain a clean workspace and ensure operator safety.

How durable are these sanding discs?

SEM Performance Abrasives feature a durable film backing and a ceramic blend designed for extended life and consistent cutting performance, even under demanding conditions.

Frequently Asked Questions

What grit is this sanding disc?

This sanding disc features a 40 grit abrasive for aggressive material removal.

How many sanding discs are in a box?

Each box contains 50 sanding discs.

What is the diameter of these sanding discs?

The diameter of these sanding discs is 150mm, which is equivalent to 6 inches.

What type of abrasive material is used?

These discs utilize a semi-open ceramic blend abrasive on a durable film backing.

What are these sanding discs best suited for?

They are best suited for demanding repair applications requiring aggressive, fast-cutting abrasion, such as significant surface preparation, paint removal, or shaping on boat hulls and composite materials.

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