Den Braven High Tack AdhesiveEqually good alternatives to use if this is not available are Sticks Like Sh*t Extreme or Den Braven MirrorFix High Tack is a high quality and professional adhesive with extreme high grab properties which cures under the influence of humidity to form a durable elastic rubber. BENEFITS Extreme high initial grab, to bond heavy building materials without the use of clamps and or fixing tape. High strength, high E modulus and high mechanical resistance.