Soft Seal Gel

Soft SealĀ is a two-part urethane combined in a 1:1 ratio by weight or volume. This is a fast setting gel that allows filters to be set very quickly after pouring. Actual cure time depends on the ambient temperature of the room. As temperature increase, cure time decrease. It is important to maintain the 1:1 mix ratio as precise as possible, then thoroughly mix the Part A and Part B together.

Soft Seal Gels can be formulated to meet your job unique requirements:

  • Penetration Levels
  • Pot Life
  • Other physical characteristics such as modification for dispensing equipment
  • Filters can be set into Soft Seal Gel approximately 6 hrs after pouring if the room’s ambient temperature has remained at a consist 77F.
  • If possible, we recommend waiting 12 hours to insure no temerature variations have occurred to affect the curing process.
  • Increasing the temperature in the room will allow setting filters sooner.
  • Soft Seal is available in a very fast format for repair jobs.


  • Part A and Part B must have matching lot numbers (cannot mix lot no.)
  • Soft Seal must be thoroughly mixed at a 1:1 ratio by weight or volume.
  • This can be done by hand, or with a precision metering equipment.
  • The device selected must be accurate to with in +/-2%. It is not recommended that the gel be poured below 60F.
  • The gel should be tested for proper curing before installation. We require this test before installation


  • Place equal amounts of the combined material (by weight or volume) in a small metal container.
  • Stir the liquid throughly.
  • Apply heat using a hairdryer or heat gun for approximately 5 mins.
  • The materials should gel by his time, or be very thick, indicating it is good.
Speciftic Gravity
Weight per Gallon
Viscosity (cps) 80F
Part A
650 Avg
Dark Blue
Part B
  • The grid/gel track should be clean and dry before pouring gel. Some cleaning chemicals and alcohol may retard or prevent curing of the gel, thus no residues of these materials should be present.
  • The use of acetone, naptha, or minerals spirits, is not recommended for cleaning purposes.
  • When the “super clean” precedes the gel pour by 6 hours or less, it is advisable to use wipes with a high percentage of isopropyl alcohol, mainly for the grid.
  • If there is any question, small section of grid should be tested prior to main installation.
  • Regardless of the FAB protocol level, there may be periods when high particle counts are observed during gel pours. This particle counts are observed during gel pours. This particulate contamination is not desirable, but as long as the particles are of an inert nature, the gel will not be affected.

Tip: The caulking of joints in stick built grid should not precede the gel pour by more than 48 hours. Temperature variations can cause sealant failure, resulting in gel leaks.