What Marelon Is

marelon plumbing system

About Marelon®

Marelon Product Overview PDF

Marelon® is a proprietary formulation of polymar composite compounds using composite reinforced polymer and additives to produce a superior marine-grade product.

  • For use above and below the waterline
  • Precision molded plumbing systems
  • Complete freedom from corrosion
  • U.L. and A.B.Y.C. approved
  • Forespar "93" series valves and thru-hull fittings meet all design criteria and exceed all mechanical property requirements specified by the International Standards Organization

Marelon® Comparision Chart 

 

U.V. Degradation

Corrosion Resistance

Abrasion Resistance

Tensil Strength**

Flexural Modulus***

ABYC* Reg.

U.L.* Reg.

Total Score

MARELON®

10

10

10

10 (12,330 psi)

10 (522,135 psi)

10

10

70

NYLON

6

10

5

10 (11,750 psi)

5 (400,000 psi)

0

0

36

ACETAL

5

10

6

5 (10,000 psi)

5 (400,000 psi)

0

0

31

PVC

3

10

2

3 (2,378 psi)

3 (390,000 psi)

0

0

21

POLYPROPYLENE

8

10

7

2 (4,350 psi)

2 (205,000 psi)

0

0

29

BRONZE

10

4

10

10 (37,000 psi)

10 (16,700,000 psi4)

10

10

64

BRASS

10

0

10

10 (45,700 psi)

10 (15,200,000 psi4)

0

0

40

Marelon® is a registered trademark of Forespar Products Corp.

  1. Minimum physical properties required for approval are:
    Tensile strength 10,900psi / 75mPa
    Flexural modulus 505,000psi / 3,480mPa
  2. Value by test to ASTM D638 (American Society of Testing & Materials)
  3. Value by test to ASTM D790 (American Society of Testing & Materials)
  4. Value is elastic modulus for metals