Arjay 2121 Radius and 5121 Radius Premium Polyester RADIUS Weight Bonding Compound for Manufacturing Boats & Ships, Navy Ships, Bulk Vessels, LPG/LNG Tanks, Power Boats, Recreationa Boats

In stock
SKU: ARJAY_2121_RADIUS_1QT_KIT
Standard or Premium
Full Kit or Resin Only
Size
Regular price $35.00 CAD
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A Brushable Radius Made with
Premium Vinyl Ester Resins

Higher viscosity and physical strength, with the same time-saving blister and impact resistance

Arjay formulates its 5121 Brushable Radius Compound with premium vinyl ester resins, resulting in high physical strength, excellent blister resistance and HDT > 200 °F. It is formulated especially for filling behind the gel coat of tight radii and bonding glass to glass joints. In addition, Arjay’s 5121 Brushable Radius Compound has excellent crack resistance, reduces finish work and helps provide better overall cosmetics.

5121 Premium Performance Benefits

  • Formulated with premium vinyl ester resins
  • Very low volume shrink, reduces air voids
  • Low styrene content
  • Maintains resiliency to resist cracks
  • Excellent durability and impact resistance

Avoiding print is possible with Arjay's 2121 & 5121 products

In recent years boat builders increasingly have designed sharp radii and style lines into their models. The challenge on the floor becomes laminating those tight radii and not leaving air voids. Plus, this has to be done without creating other problems like gel coat cracks and “print” caused by heat and excessive resin shrinkage. Arjay’s Radius Compounds rise to these challenges by providing a tough, resilient, low shrink substrate between the gel coat and skin laminate that will allow you to produce void free parts that require little to no finish work.

2121 Performance Benefits

  • Lower exotherm and shrinkage for better finishes
  • Reduces air voids and dry fibers in laminates
  • Eliminates surface cracks and blemishes
  • Maintains resiliency to resist cracks
  • High impact resistence

RECOMMENDED FOR

Filling Tight Radii
Filling Transitioning Style Lines
Bonding FRP Parts
Bedding Core
Bonding on Verical Surfaces
Short Assembly Time Apps
General Bonding

WORKING PROPERTIES

Gel Time  Reaction Time Fixture Time Peak Exotherm
18-24 min
16-30 min
34-54 min
200-250℉

TYPICAL PHYSICAL PROPERTIES

Color
Tan
Odor
Styrene
Texture
Smooth
Weight
10.2 lbs/gallon
Shelf Life
6 Months

VISCOSITY

RPM µ Min µ Max
2
720,000
960,000
20
90,000
140,000

TYPICAL CURED PROPERTIES

Test Average Deviation
Tensile Elongation
2%
<1%
Tensile Strength
1,620 PSI

Flexural Strength
2,160 PSI
150 PSI
Heat Deflection
165℉
5.0℉
Shore D Harness
75-85