Feature●High strength joint treatment material with excellent water resistance and can be used for external joints●Product Size: 9.4 x 9.4 x 13.8 inches (238 x 238 x 350 mm)●Applications: For grout treatment of mortar, gypsum board (bevel edge), wood and siding boards, cracking external mortar●Caution: Please lay the spatula down and putty it (When the spatula, only the fibers will get into the spatula and it will become a pilling way). This is a water-based, so please avoid using in environments below 12°F (5°C). Please apply a sealer before applying plaster surfaces●Safety Note: Hand wash and rinse thoroughly after handling. When polishing, it is recommended to wear a dust mask and protective glasses. Please ventilate it when using it indoorsDescription Formulated with super strong fibers, this grout putty is highly resistant to cracking and bonding to joint that is flexible and non-elongated