Technical Information

Flex Test Chart

Polyurethane Fiberglass reinforced Foam Properties

Kay-Cel Core

Test Sample Reinforcement Schedule

Kayco Triangle U15 - Unreinforced 15 lb/ft3 (240 kg/m3) Material
Kayco Triangle U20 - Unreinforced 20 lb/ft3 (320 kg/m3) Material
Kayco Triangle U25 - Unreinforced 25 lb/ft3 (400 kg/m3) Material
Kayco Triangle R15 - 15 lb/ft3 (240 kg/m3) Material twice reinforced with 2415 fiberglass
Kayco Triangle R20 - 20 lb/ft3 (320 kg/m3) Material twice reinforced with 2415 fiberglass
Kayco Triangle R25 - 25 lb/ft3 (400 kg/m3) Material twice reinforced with 2415 fiberglass

Tests were performed on a 17" (431.8 mm) long and 1-1/2" (38.1 mm) thick KAY‑CEL samples with the above physical properties.

The chart above shows how Fiberglass reinforcement increases the strength of KAY‑CEL CORE by 300%.

Contact Kayco for additional test sheets.


Polyurethane Unreinforced Foam Properties

Density Max Service
Temperature		 "K" Factor
Thermal Conductivity		 "R" Factor Coefficient of
Linear Expansion		 Dielectric
Constant		 Dissipation
Factor		 Water
Absorption
lb/ft3
(kg/m3)		 °F (°C), Dry BTU/ft2/hr/°F/in
(ASTM D2326)		 for 1" (x2-2") 105in/in/°F
(ASTM D696)		 (ASTM D1673) at 20°C and 1 meg % by vol. (96 hrs)
(ASTM D2842)
9-12
(144-192) 		200 (93) 0.31-0.35 3.24-2.86 4 1.2 0.0032 0.5
13-18
(208-288) 		200 (93) 0.36-0.40 2.78-2.50 4 1.3 0.0055 0.4
19-25
(304-400) 		200 (93) 0.42-0.52 2.39-1.92 4 1.4 -- 0.2


Water Absorption Chart

Kay-Cel Core

The chart above shows how marine plywood loses 60% of its strength after being submerged for 24 hours.


General Guidelines / FAQs

General guidelines when using Kay-Cel Core

  • Store Kay-Cel Core material indoors or protect from sunlight.
  • Can be cut with normal woodworking tools.
  • Wear dust mask, eye protection, and gloves when cutting.
  • Can be use with a wide variety of resins.
  • Do Not burn material.
  • Best practices:
    • Maintain dry, clean surface for maximum bonding.
    • Pre-wet boards with resin before applying fiberglass.
    • Remove any release agensts or shiny spots before bonding.
  • Please contact the Kayco Composites Team if you have any questions!

For additional information and product specific datasheets, please Contact us.