Description Technical Information Each length can be trimmed by up to 100mm in a simple one cut action. Suits thresholds gaps up to 13mm Full fixing instructions supplied with the product. Please contact our Technical Team if you require additional advice. Performance DD-1750 has been successfully tested to BS EN 1634-3 for cold smoke sealing (air leakage). Cycling test: 200,000 opening and closing cycles. Acoustic performance test Acoustic tests have been conducted in accordance with the standards listed below: BS-EN 10140-1 BS-EN 10140-2 39dB can be achieved.
