Product Overview
PRODUCT DATA SHEET
METACAULK
® 
JOINT STRIP
Flexible material for up to 2" wide joints
December 2017
3. Testing  Data
Metacaulk
®
 Joint Strip is UL 
Classified and tested to UL 2079. 
Degree of intumescence per DIN 
standard
   ≥18x with weight imposed
   ≥ 37x free intumescing
ASTM E 84, UL723
ASTM E 1966, UL 2079 
Flame Spread    5 
Smoke Index     5
Tested to CAN/ULC-S115 (Fire 
Tests of Firestop Systems) test 
standards. Complies to Required 
Environmental Exposure Testing 
of Accelerated Aging and High 
Humidity as per UL 1479 Fire Test 
of Through-Penetration Firestops.
Class II and III Movement
25% compression & extension
• Highly intumescent (multiple 
 staged)
• Forms a strong char to prevent 
passage of flame, smoke and 
hot gases
• May be covered with any color 
standard architectural caulk
2. Material Properties
Contains no carcinogenic fillers 
Contains no solvents
Standard Color:  Dark Gray
1. Product Description
A flexible, highly intumescent 
firestop material used in concrete 
and masonry control floor and wall 
joints up to 2" (51 mm)wide. It forms 
a strong char that prevents the 
passage of flame, smoke, and hot 
gases between control joints. Can be 
used with plastic pipe penetrations. 
Metacaulk
®
 Joint Strips are ideal 
for stadium construction, tilt up 
panels, curtain wall panels and all 
concrete and masonry construction 
joint applications where a fire rated 
control joint is required. Can be used 
with any UL listed sealant.
Metacaulk
®
 Joint Strip 
Features
• Easy to install
• Cost effective 
• Versatile, Flexible
For list of systems see metacaulk.com.


