Shanghai Max Tech Co.,Ltd
With more than 10 year efforts & premium quality, And we have won the approval of domestic and international customers. Especially in Southeast Asia, South America, North America, and A
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Single component white high modulus polyurethane sealant Widely used in the building industry for bonding and sealing
∎Product Description
PU-40 is a one-component moisture curable polyurethane sealant with good sealing and flexibility.
Polyurethane sealants are used to seal joints in a wide variety of construction applications. PU-40 is the
professional-grade polyurethane sealants that have outstanding adhesion compatibility, elasticity, durability,
paintability and much more. Polyurethane sealants are able to bond to most surfaces, particularly porous substrates
such as concrete and masonry.
It has no corrosion, no pollution, no pollution to the environment, no puncture, easy repair and good adhesion
to concrete, stone, metal and other materials substrates.
∎Typical Applications
1.Sealing of expansion and settlement joint of house building, plaza, road, airport runway, anti- all, bridges and tunnels,
building doors and windows etc
2.Sealing of upstream face crack of drainage pipeline, drains, reservoirs, sewage pipes, tanks, silos etc
3.Sealing of through holes on various wall and at floor concrete
4.Sealing of joints of prefab, side fascia, stone and color steel plate, epoxy floor etc
∎Technical Data Table
| PROPERTY PU-40 | |
| Raw Materials | Polyurethane |
| Appearance | Black/Grey/White Paste Uniform Sticky Liquid |
| Density (g/cm³) | 1.35±0.05 |
| Tack Free Time (Hr) | ≤180 |
| Tensile modulus(MPa) | ≤0.4 |
| Hardness (Shore A) | 35±5 |
| Curing Speed (mm/24h) | 3 ～ 5 |
| Elongation at Break (%) | ≥600 |
| Solid Content (%) | 99.5 |
| Operation Temperature ( ℃) | 5-35 ℃ |
| Service Temperature ( ℃) | -40~+80 ℃ |
| Shelf Life (Month) | 9 |
Note:All data above were tested under special condition (7 days after full cured).
∎Key Features
1. UV resistance excellent aging resistance,
2. High modulus and high elasticity
3.Moisture-cure, no cracking
4. Bonding well with many substrates, no corrosion and pollution to substrate
5. One component, convenient to apply, non poisonous and odor less after curing, green and environmental
6.High elasticity – cures to a tough, durable, flexible
∎Packing Specification
●Cartridge 310ml
●Sausage 400ml
●Sausage 600ml
●Pail/Drum 240kg
310ml: 24pcs per box. 600ml: 20pcs per box.
∎Direction for use
Tool: Manual or pneumatic plunger caulking gun
●Cleaning: Clean and dry all surfaces by removing foreign matter and contaminants such as oil dust, grease, frost, water, dirt, old sealants and any protective coating.
●For cartridge
1.Cut nozzle to give the required angle and bead size
2.Pierce the membrane at the top of the cartridge and screw on the nozzle
3.Place the cartridge in an applicator gun and squeeze the trigger with equal strength
●For sausage
1.Clip the end of the sausage and place in barrel gun
2.Screw end cap and nozzle on to barrel gun
3.Using the trigger extrude the sealant with equal strength
∎Attention of operation
● Choose this product, primer, activator and other matching product, must have bonding test before bonding the materials, to ensure that they have good compatibility. At the same time, before application, should guarantee that the sealant, primer and activator are in the warranty period.
●Please strictly according to the application process, any violation of the application operation may cause bonding failure. This product is innocuous after curing completely, but before
curing, please avoids contacting with eyes and skin. In case of eyes and skin contact, wash immediately and thoroughly with soap and water. If the situation is serious, please go to see a doctor immediately
∎Transport &Storage
● Transport: Keep the sealed product away from moisture, the sun, high temperature and avoid collisions.
● Storage: Keep the sealed product into cool, dry place.
● Storage temperature: 5~25℃. Humidity: ≤50%RH.
●Cartridge and Sausage :9 month. Pail/Drum:6 month.
Notice:If the temperature is higher than 40 ℃ or the humidity is more than 80%RH, the shelf life may be shorter.
∎Safety Operation Data
MSDS isn't included here. Please read TDS, MSDS and label carefully before operation. You can get MSDS from MAXTECH or other distributors, or mail to service center maxtech@shmaxtech.com
∎Warranty and Liability
All product properties and application details based on information believe to be reliable and accurate. But you still need to test its property and safety before application. The advice we supply don't apply in any circumstances. MAXTECH don't make assurance of any other applications outside the specification until MAXTECH supply a special written guarantee. MAXTECH is only responsible to replace or refund if this product is defective within the warranty period stated above. MAXTECH makes it clear that will not be liable of any accidents.
Maxtech do the PU sealant, MS sealant, Silicone sealant & Epoxy adhesive for Automotive industry, Construction industry, Road, Electronic compoenent .
Any inquiry, welcome to talk more us.