Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
Features & Benefits
- Ready-to-Use Product Features
- Performance Benefits
• Working time of 5 & 15 minutes - Selection to fit application & process requirements
• Primerless metal bonding - No surface treatment or primers needed on most metals2
• Environmental resistance - Permanent bonds in harsh operating environments
• Permanent toughness - Excellent fatigue, impact and shock load resistance
• Excellent flow characteristics - High flow at low pressure, ease of manual dispensing
• Reduced bond-line read through - Reduced post finishing requirements
Applications & Uses
- Markets
- Compatible Substrates & Surfaces
- Recommended Substrates
Composites Metals ThermoplasticsEpoxy Aluminum ABS Polyester& DCPD Modified Carbon Steel Acrylics Vinyl Ester Stainless Steel PVC/CPVC Gelcoats Coated Metals Styrenics - Mixing and Application
Exotherm: The chemical curing reaction that occurs when components A and B are mixed generates heat. The amount of heat generated is dependent on the mass and thickness of the mixed product. Large masses over 0.375 inch (10 mm) thick can develop heat in excess of 250°F (121°C) and can generate vapors that should be avoided from direct personal contact.
- Curing
Working time is the approximate time, after mixing components A and B that the adhesive remains fluid and bondable. Fixture time is the approximate time after mixing components A and B required for the adhesive to develop sufficient strength to allow careful movement, unclamping or de-molding of assembled parts. Parts can generally be put in service when 80 percent of full strength is developed. The time to achieve 80% cure is approximately 2-3 times that required for fixturing. The working and fixture times presented in this bulletin are based on laboratory tests performed at 75°F (24°C). Higher temperatures speed the curing reaction, which reduces working time and speeds the development of strength. The reverse is true for lower temperatures. If significant variation in temperatures or application at very high or low temperatures is anticipated, contact your SCIGRIP representative for technical assistance.
- Dispensing Equipments
Dispensing directly from disposable cartridges or meter-mix dispense equipment is strongly recommended. Both methods employ convenient static motionless mixer technology. Product supplied in pre-measured cartridges is dispensed from approved manual or pneumatic powered guns. While using pneumatic dispensing guns, it is mandatory to use the gun’s regulator to regulate the air pressure. Manufacturers recommended maximum operating pressure and maximum compressed air supply pressure are 85 and 120 psi (5.9 and 8.3 bars) respectively. Removal of the regulator from the dispensing unit can lead to over pressurizing and rupture of the cartridge cylinder. Contact your SCIGRIP representative for information and availability. When meter-mix dispense systems are used, care must be taken to assure compatibility between the adhesive components and the materials in the equipment that they contact. All wetted metal components should be constructed of stainless steel or aluminum or have a sufficient thickness of chemically resistant material that prevents contact between the adhesive components and the base metal. Contact with copper, zinc, brass or other alloys containing these materials must be strictly prevented. All non-metallic seals and gaskets should be fabricated from PTFE or UHMW polyethylene based materials. Natural rubber, nitrile rubber (BUNA), neoprene and Viton® are not acceptable. Ethylene-propylene rubbers, such as Nordel® may be used for ram follower plate o-rings, but a polyethylene sheet must be used to prevent direct contact with the adhesive.
- Applications
Follow instructions provided or contact your SCIGRIP representative for proper preparation of dispensing equipment and substrates prior to starting the bonding process. Always dispense a quantity of adhesive at start-up to assure that the adhesive exiting the tip of the mixer is the proper color and is uniform, without streaks. If previously opened or aged material is being used, allow the purged material to cure to assure quality before proceeding. Carefully dispense a sufficient quantity of adhesive on the substrate to assure that the bond gap will be completely filled when the parts are mated. Allow for squeeze-out at the edges of the bond to assure filling. Carefully secure or clamp parts to prevent joint movement while the adhesive sets. Do not apply excessive pressure that can cause excessively thin gaps and starve the bond line. If in doubt, use shims or spacers to set the gap. A minimum gap of 0.02 inch (0.50 mm) is recommended for these products. Test the curing adhesive at the edges for fingernail hardness before removing clamps or fixtures. If clean up of the adhesive from the bonded area is required, carefully wipe with alcohol or other preferred industrial solvent while the adhesive is still wet or soft, taking care not to disturb or move the mated parts. Partially cured adhesive can be carefully removed with a sharp knife. Cured adhesive must be sanded or scraped, using a suitable solvent to remove remaining traces.
- Clean Up
Adhesive components and mixed adhesive should be removed from mixing and application equipment with a suitable industrial solvent or cleaner before the mixed adhesive cures. Once the adhesive cures, soaking in a strong solvent or paint remover will be required to soften the adhesive for removal. If the bonds are exposed to UV rays then use of plasticizers such as Benzoflex 2088 is recommended, or contact your SCIGRIP representative for additional information. Any clean-up of the bonded assembly using industrial solvents is not recommended as it could affect the cure.
- Uses
To ensure consistent performance, product temperatures must be held reasonably constant between 65°F (18°C) and 80°F (27°C). Substrate preparation, adhesive/activator ratio, application temperature, humidity and a variety of other environmental and end user application factors are beyond the control of IPS Adhesives; therefore, the end user is solely responsible for determining whether the product is fit for a specific purpose and suitable for the user’s product, design and final application requirements.
Properties
- Physical Properties
- Product Properties at 75°F (24°C) – Fixture Time (Time To Achieve 70% Of Ultimate Strength In Lap Shear)
Cartridge Adhesive / Activator Working Time (minutes) Fixture Time (minutes)SG800-05 SG805 A / SG805 B 4 - 6 12 - 15 SG800-15 SG815 A / SG805 B 4 - 16 20 - 30
| Value | Units | Test Method / Conditions | |
| Tensile Strength (24°C) | 2,800-3,100 (19-21) | psi (MPa) | — |
| Maximum Tensile Elongation (24°C) | 25-50 | % | — |
| Tensile Modulus (24°C) | 100,000-120.000 (689-827) | psi (MPa) | — |
| Lap Shear Strength (24°C) | 2,600-2,900 (18-20) | psi (MPa) | — |
| Service Temperatures (24°C) | -55-121 | °C | — |
Technical Details & Test Data
- Typical Adhesive Characteristics at 75°F (24°C)
Characteristics Part A (Adhesive) Part B (Activator) Mix (Part A+B) Color Off White Black or White Black or Off White Mix ratio by volume 10 1 - Mix ratio by weight 6.0 1 - Density, g/cc 0.96 1.62 1.02 Density, Ib/gallon 7.93 13.6 8.51 Viscosity, cps 150,000 - 250,000 60,000 - 120,000 -
Safety & Health
- Safety
Read Material Safety Data Sheet before handling or using this product. Adhesive component A contains flammable methyl methacrylate monomer. Always use in a well-ventilated area. Floor-level extraction and large quantities of moving air greatly facilitate ventilation. Activator component B contains peroxide. Both materials must be stored in a cool place away from sources of heat and open flames or sparks. Keep containers closed when not in use. Prevent contact with skin and eyes. In case of skin contact, wash with soap and water. In case of eye contact, flush with water for 15 minutes and seek immediate medical attention. Harmful if swallowed. Keep out of reach of children.
Packaging & Availability
- Packaging Type
Storage & Handling
- Shelf Life And Storage Conditions
The shelf life of adhesive and activator in unopened containers is six (6) months from the date of shipment to you from IPS Adhesives unless otherwise explicitly stated. Shelf life is based on a continuous, steady state storage temperature of between 65°F (18°C) and 80°F (27°C). Exposure to temperatures below 65°F (18°C) or above 80°F (27°C) will impact the product performance and viscosity. Exposure to temperatures above 80°F (27°C) will rapidly reduce the stated shelf life of