DM221 PU sealant for windshield, Auto bonding/sealing
DM221 is a one-component sealant based on PU polymers, moisture curing type. The curing speed of mortar is related to the temperature and humidity of the enviroment. Under high-temperature or high-humidity conditions, it will be quickly crusted. The final curing time is also related to the thickness of the glue applied.
DM221 is a specially designed sealant for vehicles. It has features of high modulus, good elongation and good resilience.
It is suitable for all kinds of porous and non--porous materials. It has good adhesion, can be painted on surface and has other prominent features, is a high-performance general use elastic sealant.
Features & Advantages
Bright black, can be scratched on surface after applied.
Odorless, low VOC, PVC free, excellent antibacterial and anti-mildew effects, safe to use.
Good resistance to cold and hot weather alternation, over 10 years of service life.
Excellent anti-sagging property, low shrinkage after curing, good shaping, no dents, smooth coating.
It can be used to fill and seal gaps between glass and metal sheet, metal sheet and metal sheet such as passenger cars, construction vehicles and electric vehicles.
Good weather resistance, UV resistance, good elasticity and adhesion in the range of -40ºC~90ºC. More than 10 years of service life.
No primer required.
Typical applications
DM221 is suitable for elastic sealing of various substrate joints, including stainless steel, aluminum, copper, PVC, polyester, ceramics, wood, coating, etc., but not suitable for PP and PTFE materials. Also can be used for general sealing in the manufacturing industry.
Application area
- In the industries of passenger cars, construction vehicles, electric vehicles, it is used to fill and seal gaps between glass and metal sheet, metal sheet and metal sheet. As well as 4S shops and stores, they are used to bond and seal seams during various vehicle repairs.
- Other occasions where there is a matt color requirement on the construction surface.
Technical Data Sheet
| Indicator | Parameter |
| Color | Bright black |
| Outer appearance | Paste |
| Density, g/cm³ | 1.56 ± 0.03 |
| Consistency | 5.9 ± 0.2 |
| Hardness, Shore A | 65 ± 2 |
| Extrusion. ml/min | ≥80 |
| Sag rate, mm | 0 |
| Surface dry time, min | 25-40 |
| Curing speed, mm/24h | 3.0-5.0 |
| Peel adhesion, Cohesive destruction, % | ≥75 |
| Elongation at break, % | ≥300 |
| Tensile Strength, Mpa | ≥1.5 |
| Breaking strength, Kn/m | ≥16 |
Test under situation: 23ºC×50%RH×28days
Packaging
300~600ml/Sausage
280~300ml/Aluminium cartridge
Storage
Shelf life: 12 months in unopened packing, since the production date.
Customer Question & Answer
Could you provide OEM service?
Yes, OEM service is available. You can contact us by e-mail, tel, skype, whatsapp, facebook etc.
Could you provide a complete solution for the products which are in selling?
Yes,as a professional manufacturer of sealants for bonding and sealing, it is our pleasure to make customized solution on your requirement on your product.
What is the delivery time for sample and purchased order?
At normal condition, the delivery time is 2-10 days for samples, 15-20 days for purchase order.
Can we get a sample ?
Yes, we understand that you need sample for testing. So we can provide 1-2 units free of charge.
Contact Information
MP: 0086-132 1008 3810
Tel: 0086-532-8878 1015
Web: dm-adhesive.en.made-in-china.com