Commercial and Industrial Contractors Since 1962

Firestop Wrap Strips

Nelson Wrap Strip (WRS3™) is a highly intumescent firestop wrap system.  When exposed to fire, the wrap strip expands and forms a hard char to seal off the penetrating item and preventing the passage of fire and hot gasses.


Click here for more product information and MSDS

Firestop Joint Coating

Nelson Firestop Joint Coating (FSC3™) is a water based, acrylic latex, elastomeric, fire protective coating for use on construction joint applications where thermal expansion and contraction of joints may be encountered.


Click here for more product information and MSDS

Firestop Compound

Nelson Firestop Compound (CMP™) is a mortar-like compound applied to penetrations and openings to provide a weather resistant, non-shrinking fire rated seal.  Ideally suite for medium to large openings filled with or without penetrants.


Click here for more product information and MSDS

Firestop Silicone Sealant

Nelson Firestop Silicone Sealant (CLK™) is a flexible sealant used to protect from the spread of fire, smoke, gasses and water.  It is designed for applications of through firestop penetrations and in construction joints.


Click here for more product information and MSDS

FyreWrap®Elite® 1.5 Duct Insulation-Grease Duct-Double Layer

Unifrax FyreWrap® Elite® 1.5 duct insulation is a two-layer flexible enclosure for 1 and 2 hour fire rated commercial kitchen grease ducts and hazardous exhaust ducts including chemical fume ducts.  FyreWrap Elite 1.5 Duct Insulation is tested per ASTM E-2336 and is acceptable as an alternate to a traditional fire-rated shaft.


Click here for more product information and MSDS

FyreWrap®Elite® 1.5 Duct Insulation-Grease Duct-Single Layer

Unifrax FyreWrap® Elite® 1.5 duct insulation is a single layer flexible enclosure for 1 and 2 hour fire rated commercial kitchen grease ducts and hazardous exhaust ducts including fume ducts.


Click here for more product information and MSDS

Commercial and Industrial Contractors

Firestop Pillows

Nelson Firestop Pillow (PLW™) is a soft, pliable, intumescent, compressible firestop device that is well suited for installation where frequent changes may be required.  Firestop solutions for cable, cable tray and other penetrations or for temporary firestop closures.


Click here for more product information and MSDS

Firestop Pipe Choke System

Nelson Pipe Choke System (PCS™) is a prefabricated device used to seal penetrations and maintain the rating of fire rated floors and walls.  The pipe choke is designed for penetrations of non-metallic pipes.


Click here for more product information and MSDS

Firestop Putty Bar and Pad

Nelson Firestop Putty (FSP™) is a completely pre-mixed ready to use firestop product that can be pressed into place forming an immediate fire seal.  Firestop Putty inhibits the passage of smoke and flame through penetrations and joints.


Click here for more product information and MSDS

Firestop Cable Coating

Nelson Firestop Cable Coating (FSC™) is a water based, intumescent, fire protective coating designed to enhance the fire resistance of electrical power, communications and control cables.  It is commonly applied to continuous cable runs to prevent the propagation of fire.


Click here for more product information and MSDS

Firestop Composite Sheet

Nelson Firestop Composite Sheet (CPS™) is a rigid, elastomeric, fire resistant panel used to seal penetrations and maintain the rating of fire rated floors or walls.  Ideally suited for cable try penetration, large floor or wall openings and telecommunications or power cable systems.


Click here for more product information and MSDS

Firestop Latex Sealant

Nelson Firestop Latex Sealant (LBS3™) is an elastomeric, water based, intumescent, fire protective sealant.  It is used to seal against the spread of fire, smoke, gasses and water.


Click here for more product information and MSDS

Firestop Elastomeric Sealant

Nelson Firestop Elastomeric Sealant (ES1399™) is a water based acrylic latex, endothermic, fire protective sealant.  It is designed for applications of through firestop penetrations and in construction joints.

Click here for more product information and MSDS

FyreWrap® Plenum Insulation

Unifrax FyreWrap® 0.5 Plenum Insulation is a high temperature insulation blanket specifically designed to provide a single layer, flexible enclosure around combustible items located within fire rated return air plenums.


Click here for more product information and MSDS