VLW IMO Underlayment Kit

VLW IMO Underlayment Kit


Out of stock


Very Lightweight Underlayment IMO (VLW-IMO) is a 100% solids epoxy resin base mixed with a very lightweight aggregate to form a trowel applied decking underlayment for general use under all deck covering materials. Due to the rapid cure of Very Lightweight Underlayment IMO, it can be installed with minimum downtime. It can be applied directly to clean metal or steel. It offers every advantage for lightweight filler sloping/leveling compound for quick turnover maintenance and/or repair installations.

Typical Uses:

VLW Lightweight Underlayment can be used to level or slope a deck and provide a smooth even surface over metal, aluminum or steel for subsequent application of any deck covering products.

Approvals:-U.S. Dept. of Defense… MARAD Spec. N. 59MA 6a Type I, Class 2


  • Very Lightweight
  • Fast curing for short installation times
  • Durable in sanitary, wet spaces
  • Easily maintained
  • Fire retardant
  • Not flammable or toxic in wet state

Technical Info: 

Thickness Minimum 0″ (feather edge) – 3″ (75 mm)
Weight 0.94 lbs/sq. ft. @ 1/4 inch (4.589 kg/m2 @ 6.35mm)
Indentation Resistance 2,000 psi
@ 48 hrs…………………> 2%
@ 96 hrs…………………> 1%
Impact Resistance >0.062 inches (2 lb steel ball @ 8 ft)
Moisture Absorption <1%
Fire Rating, US Navy Fire Retardant Passes (MIL-STD-1623, SHIPS)
IMO FTP Passes
Adhesive Strength, Shear 350 psi (241.39 kg/cm2)
Corrosive Effect, Steel None
Corrosive Effect, Aluminum None
Shock Resistance 2,000 lbs
Reverse Impact No Chipping, Cracking, Delamination Signs of Deterioration
Asbestos Content <0.00005%
Hazardous Metal Content Complies (MIL-PRF-3135
Hazardous Air Pollutants Complies (MIL-PRF-3135
VOC Content 100% Solids (0 g/L)
Flash Point >251°F



Technical Data Sheet, VLW IMO  -25

VLW Underlay IMO Part A (0656-IMO) GHS 09-20

VLW Underlay IMO Part B (0657-IMO) GHS 09-20

VLW Underlay IMO Aggregate (0658-IMO-10) GHS 07-18


Coverage and Packaging

Theoretical Coverage 

1/4  inch 6.35 mm 250 mils

26 Square Feet Per Kit

1/2  inch

12.7 mm 500 mils

13 Square Feet Per Kit

Mix Ratio:

1 Part Resin : 1 Part Hardener:  1 Part Aggregate


Item Number Description Weight


VLW Underlayment IMO Resin-EXPORT

16.0 lbs. / 7.25 KG


VLW Underlayment IMO Hardener-EXPORT

2.5 lbs. / 1.13 KG

0658-IMO-10 VLW IMO Aggregate-EXPORT

10.3 lbs. / 4.67 KG