Sika Building Sealant comes in white, clear and brown. This product bonds to building materials like wood, concrete and metal. It is able to seal movement joints as its high level of flexibility allows for movement which preserves the joint. It is fully waterproof so it can be used outside and inside. It is long-lasting and strong. This waterproof product contains fungicides that helps seal movement joints, is highly flexible and has a strong bonding agent.