PRODUCT DESCRIPTION
 Dynatrol®  I-XL Hybrid is based 
on a unique hybrid STPU (silyl
terminated polyurethane) 
differentiating it from the 
standard Dynatrol®  I-XL 
urethane-based sealant. The 
STPU chemistry utilized by the 
Dynatrol®  I-XL Hybrid formula 
allows for a low odor, non
staining, non-yellowing, one
part, moisture curing, gun-grade, 
isocyanate free sealant. It has 
been developed specifically for 
sealing dynamic joints between 
dissimilar materials, of varying 
coefficients of expansion and 
contraction on both porous 
and non-porous surfaces. It 
cures to a low modulus rubber 
with extraordinary adhesion, 
capable of accommodating joint 
movement of ±50% of the original 
joint width. It does not yellow, 
crack or craze on long term 
exposure to UV light.

 Advantages:
 • Fire rated for use in UL/cUL 
• joint systems.
 • Non-Staining
 • Non-Yellowing
 • Paintable as soon as tack free
 • Isocyanate free
 • Exceptional adhesion
 • Moisture tolerant
 • Low VOC
 • No shrinkage
 • Minimal dirt pick-up
 • Low odor
 • Non-gassing
 • Long life
 • Fast Cure
 • Adhesion to green concrete