1, poly-foam plastic
The polyethylene closed hole foam has been repeatedly tested by the Academy of Sciences of the Ministry of Communications of China and other units, and proved that its performance has the characteristics of small density and high recovery rate compared with wood, cork, rubber and asphalt.
Features of Polyethylene closed hole foam products:
1, polyethylene closed hole foam has light bulk weight, large expansion strength, no water absorption (instead of the traditional three oil four felt, asphalt fir and other materials). Product environmental protection, simple construction, seepage prevention, leakage prevention, water stop effect is good.
2, this product is corrosion resistant, aging resistance, high and low temperature resistance of 80℃ ~ -45℃ does not flow, not deformation, not brittle crack, long service life.
Physical and mechanical properties of polyethylene closed-hole foam board: apparent density 0.04 / ㎡ tensile strength 0.15 Mpa compressive strength 0.15 Mpa tear strength 4.0 N/mm heating deformation 2.0% water absorption 0.005g / ㎝ 3 elongation 100% hardness (C durometer) 40- -60 Shao A. Degree compression permanent deformation 3.0% closed hole foam board adopts high pressure polyethylene low foam closed hole foam board, the material interaction with sealant does not change.
2. Polyurea
Polyurea coating is flexible, rigid and colorful, it is dense, continuous, no seam, completely isolated from the infiltration of water and oxygen in the air, anticorrosion and protection performance is incomparable. At the same time, it has wear resistance, waterproof, impact resistance, fatigue resistance, aging resistance, high temperature resistance, nuclear radiation resistance and other functions, so the application field is very wide.
Typical physical index of polyurea-
Wet state and dry state
100%, tensile strength 4219 Psi
pa)(average)
Volume solid content 100% elongation was 619%
V.O.C. 0 100% modulus 1280Psi(8.9mpa) ± 100
The gel was approximately 5 min 300% modulus 2137 Psi (14.9) ± 100
Dry time about 50-80s tear strength 612 PLI (average)
Complete condensation for 24 hours, wear strength 1 kg, 1000 rpm, 19.1 mg in CS-17 rounds
1 kg, 1000 rpm, 50 mg loss in H-22 rounds
Recoating time 0-12 hours flame spread rate 20 milil 5
Oxygen index 28 Smoke concentration of 20 mils 5
No visible failure after 3000 hours of hou tolerance (QUV)
Tensile strength / MPa 4
Break elongation /% 150
-Polyurea-
The dielectric resistance of polyurea material is very outstanding, which can withstand the long-term immersion of most corrosive medium
3. Features:
Tough resistant epidermis
Absorb shock energy
Never sink
Tiny wear
Low maintenance cost and corrosion resistance
Lighter than the conventional steel buoys
Various terminal accessories are available
Available in various colors and designs
