HYPER SEAL BR-2510NC is made by butyl rubber strips. The swelling action is the result between water and hydrophilic groups which are part of the HYPER SEAL molecular structure. Expansion of the waterstop creates a positive seal against the face of the concrete joint and prevents the water entry into the structure through the protected joint.
1618822234_h_y_p_e_r_s_e_a_l_b_r2510_n__v8.0%28_e_n%29-Fw1r.pdf Download