C002PD11 Polyurethane Structural Adhesive
C002PD11 is 2-component polyurethane adhesive which cures by chemical reaction of the 2-components mainly designed for corner connection application.
C002PD1X series products are used for bonding e.g. corner connections for frame profiles that are usually used for windows and doors.
Features
UV colour retention
Solvent-free
Thixotropic, does not drop off
Good weather ability
Easy to process, can be over-coated with many paint systems
Good extrusion performance, with an extrusion volume of 100g to 200g/minute.
Good filling and flowing properties
High strength and high module
Typical application
Hard pointing of wall elements.
Structural, force-locking bonding of the most varying material combinations, e.g. in the field of vehicle body manufacture.
For bonding of Alu, HPL, GRP and other materials.
Aluminium window and door manufacturing for bonding of corner connectors.
Also suitable for frictional bonding of very different materials such as wood, metal, plastics, stone, etc.
General bonding in metal construction
Main technical parameters
PROPERTY | STANDARD/UNITS | VALUE |
Product Type | - | Polyurethane, 2K |
Appearance | Visual | White, uniform and fine, no particles |
Density | g/cm3 | 1.5±0.1 |
Sagging | ≤3 mm | 0 |
Mixing proportion volume ratio | v:v | 100:100 |
Process time | ≥10 min | 15 |
Tack free time | min | 35±5 |
Bending test (bending deformation) | ≥4 mm | > 15 (breakable) |
Hardness | 24H ≥60(Shore D) | 72 |
Shear strength (Al-Al) | 24H ≥2 MPa | 9.8 |
7day ≥3 Mpa | 11.3 | |
Temperature resistance | ℃ | -50~+100 |
Service temperature | ℃ | 5~+40 |
Shelf life | Month | 6 |
Construction process
Cure mechanism
The curing of the products takes place by a chemical reaction of the two components. Higher temperatures speed up the curing process and lower slow it down.
In big bead applications, the generated heat of exothermic reaction can speed up the cure,reducing the pot-life.
Bonding of materials with different longitudinal extension must be assessed regarding their long-term behaviour, especially when they are exposed to fluctuating temperature ranges.
Pot-life, processing time, as well as the necessary pressing time or fixing time, can only be determined accurately by self-tests because they are strongly influenced by material characteristics,temperature, mixed quantity, applied quantity, and other criterions.
Substrate preparation
The surfaces of the workpieces to be bonded must be dry, and free from grease, oil, dust and contaminants.
After the cleaning process, a physical or chemical pre-treatment might be required, depending on the material surface, check if the bonding result can be improved by grinding or applying of primer.The type of pre-treatment must be determined by tests.
Polyolefins (among others PE, PP) cannot be bonded without preparation, e.g. plasma- or corona treatment. If PS-hard surfaces are bonded, generally we recommend using a primer.
For corrosion-protection and for sealing of e.g. mitres and butt joints in the field of aluminium construction, the corrosion-protective sealant or the colour variants are applied on the blank aluminium cut surfaces before the connecting elements are bonded.
Application
Reactivity of the products are considerably influenced by the temperature.
The product is dispensed by the air pressure piston guns.
The static mixer is screwed onto the open tandem cartridge and the tandem cartridge is inserted in the air pressure piston guns.
Dispose off the first few cm of the bead prior to the application. The first approx. 20g of the mixed adhesive (approx. walnut size) are not used for bonding for safety reasons (cartridge filling method).
Check the color of the adhesive and make sure it is mixed properly (no strings or stripes in the extruded bead).
Within the processing time, apply the mixed adhesive directly from the static mixer into the profile or onto the surface to be bonded and fit the parts together.
In case of short interruptions of work, within the processing time, if glued once more, new, fresh adhesive is filled in the static mixer. In this way, one static mixer can be used for a whole work day.
After a long work stoppages or the end of work, the used static mixer should remain on the cartridge unit; if work starts again, the static mixer should be to be replaced. If necessary, remove hardened adhesive from the cartridge nozzle. Then approx. 20g of the mixed adhesive (approx. walnut size) are not used for bonding for safety reasons (cartridge filling method).
Attention
Depending on the type or brand of the air pressure piston gun, and when applying higher operating pressure, the tandem cartridges can be damaged or become leaky due to the different forces caused by the pneumatic cylinders of the guns at usual application temperatures. For this reason, possibly the correct mixing ratios of the adhesive systems cannot be obtained.
Bonding of aluminium, copper, brass: only on chemically pre-treated or varnished surfaces; these materials cannot be durably bonded to be age-resistant without appropriate pre-treatment of the surfaces to be glued.
Due to the difficult definition of aluminium surfaces and qualities, we generally recommend gathering sufficient information from the supplier to prepare the planned bonding process optimally; sufficient qualification tests are required.
Due to their variety, age and, if necessary, additional treatment with oil or wax, anodized surfaces do not allow any general statement about wettability or bonding characteristics of these bonding surfaces.
If stainless steel is manufactured or processed, auxiliary aids, e.g. wax, oil, etc, are often used, that usually cannot be removed by simple wiping away; it turned out that after the cleaning with solvent-based cleaning agents a clearly better bonding result will be achieved after grinding, or better sand blasting, of the surface and following cleaning with solvent.
Galvanized sheet metals must generally be protected from stagnant humidity that is permanently acting on it "formation of white rust". In this case, it must be excluded that occurring humidity can get onto the bonding surface.
Powder coatings with shares of PTFE cannot be bonded reliably without pre-treatment (e.g. plasma procedure).
Removal
The fresh, not cured adhesive may be removed from tools and equipment with right cleaner.
Once cured, the material can only be removed mechanically.
Hands and exposed skin have to be washed immediately using hand wipes or a suitable industrial hand cleaner and water.
Do not use solvents on skin.
Packing specifications
2 x 300 ml tandem PP-cartridge (with static mixer);
600ml/ set, 12 sets / box.
Storage and transportation
Storage:
During storage, it is necessary to prevent moisture, rain, sun, high temperatures, and heat sources.
The product should be kept between 10 °C and 30 °C in a dry place.
Do not expose it to direct sunlight or frost.
After opening of the packaging, the content has to be protected against humidity.
Storage life in unopened original packages is 9 months from the production period.
Transportation:
General chemical products, non-dangerous goods, can be transported as non restricted goods.
Precautions
Fast and keep away from children.
Avoid contact with eyes and skin before curing.
In case of accidental contact with skin, first scrub with soapy water or alcohol, and then rinse with clean water.
In case of contact with eyes, rinse with plenty of water first, and seek medical advice immediately if necessary.
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 information we supply don't apply in any circumstances. We don't make assurance of any other applications outside the specification until supplying a special written guarantee. We are only responsible to replace or refund if the product is defective within the warranty period stated above. We makes it clear that will not be liable of any accidents.