CILBOND® 48

Bonding Capabilities

• Cilbond 48 is a one-component bonding system for hot and cold-cure PU’s and TPU’S to all metals during the curing process at temperatures of 20°C to 135°C for cast elastomers and up to 200 C for TPU’s..
• Cilbond 48 will also bond PU’s and TPU’s to epoxies and fibreglass reinforced plastics, polyamides and other engineering thermoplastics, such as Hytrel®, PBT, PET, PPS, PPO, PEEK, PES, etc.

In-service Benefits

• Cilbond 48 is especially suitable for use in dynamic conditions where hydrolytic stability is important, exhibiting no failure in the cement to metal bond.
• This is illustrated by tests where a 95° Shore A modified polyether TDI prepolymer / Ethacure 300 system was bonded to mild steel with Cilbond 48. It showed 100% rubber tear with peel loads of 1000N/25mm, when tested at 23°C after total immersion for 15 days in pressurised tap water at 105°C.
• Cilbond 48 exhibits excellent salt-spray resistance, illustrated by bonding a polyether TDI prepolymer / Ethacure 300 to a mild steel substrate and tested at 40°C in a 5% salt solution for 300 hours. Results showed no edge corrosion or bond failure.

Processing Benefits

• Cilbond 48 is formulated with a fast-drying solvent system which dries quickly to give tack-free / non-blocking coatings. It will also bond without the need of a pre-bake, but will reliably withstand cycles of up to 24 hours at 100-110°C.

Performance Benefits Of Cilbond 48 + Cilcure B

• Components bonded using Cilbond 48 + Cilcure B subjected to water at <50°C is predicted to be > 20 years.
• Cilbond 48 + Cilcure B yields bonds capable of withstanding boiling water for up to 105°C for >200 hours.
• Cilbond 48 + Cilcure B also gives improved adhesion to many difficult to bond substrates; especially epoxy resins (including Fusion Bonded Epoxy), GRP / FRP, glass, ceramics, etc.
• Cilbond 48 + Cilcure B (or Cilbond 48 + Cilcure B as a primer under Cilbond 48) produces bonds capable of withstanding temperatures up to 180°C
• The use of Cilbond 48 as a cover coat is covered below.

Cilbond 48 + Cilcure B As A Primer Under Cilbond 48

• This combination is used to achieve the performance benefits of Cilbond 48 + Cilcure B with the processing benefits (long open time and pre-bake resistance) of Cilbond 48.
• A primer coat of Cilbond 48 + Cilcure B is applied to well-prepared metals to give a minimum of 15μ dry coating thickness and dried for 1 hour at ambient temperature or with gentle applied heat.
• A second coat of Cilbond 48 is applied to give a total coating thickness of 25μ and dried thoroughly.
• The parts can now be treated as though coated with Cilbond 48, but have the in-service performance benefits of Cilbond 48 + Cilcure B.

• One-coat solution
• High-temperature resistance in service
• High pre-bake resistance
• Extreme chemical resistance
• Bonds wide range of PU systems
• Sprayable with CILBOND Diluent 4000
•  Clear or pigmented color offerings
• Reduce process cost and increased productivity
•  Improve performance on high-temp applications
•  Reduce rework and expand process window
•  Protection of substrate to extend product life
•  Reduce product complexity
•  Allows for automation and uniform coating
•  Eliminates visual bond line or improve QC process with pigment

Bonding Capabilities

• Cilbond 48 is a one-component bonding system for hot and cold-cure PU’s and TPU’S to all metals during the curing process at temperatures of 20°C to 135°C for cast elastomers and up to 200 C for TPU’s..
• Cilbond 48 will also bond PU’s and TPU’s to epoxies and fiberglass reinforced plastics, polyamides and other engineering thermoplastics, such as Hytrel®, PBT, PET, PPS, PPO, PEEK, PES, etc.

In-service Benefits

• Cilbond 48 is especially suitable for use in dynamic conditions where hydrolytic stability is important, exhibiting no failure in the cement to metal bond.
• This is illustrated by tests where a 95° Shore A modified polyether TDI prepolymer / Ethacure 300 system was bonded to mild steel with Cilbond 48. It showed 100% rubber tear with peel loads of 1000N/25mm, when tested at 23°C after total immersion for 15 days in pressurized tap water at 105°C.
• Cilbond 48 exhibits excellent salt-spray resistance, illustrated by bonding a polyether TDI prepolymer / Ethacure 300 to a mild steel substrate and tested at 40°C in a 5% salt solution for 300 hours. Results showed no edge corrosion or bond failure.

Processing Benefits

• Cilbond 48 is formulated with a fast-drying solvent system which dries quickly to give tack-free / non-blocking coatings. It will also bond without the need of a pre-bake, but will reliably withstand cycles of up to 24 hours at 100-110°C.

Performance Benefits Of Cilbond 48 + Cilcure B

• Components bonded using Cilbond 48 + Cilcure B subjected to water at <50°C is predicted to be > 20 years.
• Cilbond 48 + Cilcure B yields bonds capable of withstanding boiling water for up to 105°C for >200 hours.
• Cilbond 48 + Cilcure B also gives improved adhesion to many difficult to bond substrates; especially epoxy resins (including Fusion Bonded Epoxy), GRP / FRP, glass, ceramics, etc.
• Cilbond 48 + Cilcure B (or Cilbond 48 + Cilcure B as a primer under Cilbond 48) produces bonds capable of withstanding temperatures up to 180°C
• The use of Cilbond 48 as a cover coat is covered below.

Cilbond 48 + Cilcure B As A Primer Under Cilbond 48

• This combination is used to achieve the performance benefits of Cilbond 48 + Cilcure B with the processing benefits (long open time and pre-bake resistance) of Cilbond 48.
• A primer coat of Cilbond 48 + Cilcure B is applied to well-prepared metals to give a minimum of 15μ dry coating thickness and dried for 1 hour at ambient temperature or with gentle applied heat.
• A second coat of Cilbond 48 is applied to give a total coating thickness of 25μ and dried thoroughly.
• The parts can now be treated as though coated with Cilbond 48, but have the in-service performance benefits of Cilbond 48 + Cilcure B.

Coated parts can be stored for up to 7 days, provided they are protected from dust and moisture, but ideally the PU should be cast within 48 hours.

Shelf Life: 12 Months from Date of Manufacture.