LOCTITE 638 is designed for welding cylindrical fittings, especially where the joint gaps can reach 0.25 mm. It works not only on active metals but also on passive substrates, showing a strong hardening performance. The product offers high temperature performance and good oil tolerance and tolerates small surface contaminants._x000D__x000D_Your benefits_x000D_High strength to all metals, including passive substrates (eg stainless steel)._x000D_Ideal for shafts, gears, pulleys and similar cylindrical parts._x000D__x000D_Maximum. gap size: 0.25 mm_x000D_Operating temperature range: -55 to + 180 ° C_x000D_Shear tensile strength in N / mm²:> 25_x000D_Mounting steel: 4 minutes._x000D_Thixotropy: No.