Cilbond® 49SF is a single-component bonding agent specifically designed for hot-cure applications (more than 160°F/70°C) with castable polyurethane elastomers and injection-molded TPU systems. It features a pigmented red color and is widely recognized as the industry benchmark for high-performance urethane bonding. Cilbond® 49SF has been developed to bond effectively with various materials, including metals, polyesters, polyamides, epoxies, and fiberglass reinforced plastics. It is highly recommended by leading urethane manufacturers and offers impressive in-service heat resistance of up to 265°F/130˚C (or up to 350°F/180˚C when used in combination with the Cilcure® B additive).

Chemical Family: Polyesters, Polyurethanes (PU)

Application Method: Brush, Dip Coating, Roll Coater, Spray

Compatible Substrates & Surfaces: Epoxies, Fiberglass, Fibre-reinforced Plastic (FRP), Glass Fibre Reinforced Polymer (GFRP), Metal, Plastics, Poly(p-Phenylene Oxide) (PPO), Polyamide, Polybutylene Terephthalate (PBT), Polyesters, Polyether Ether Ketone (PEEK), Polyethersulfone (PES), Polyethylene Terephthalate (PET), Polyphenylene Sulfide (PPS), Polyurethane, Thermoplastic Polyurethane Elastomer (TPU)

Features: Boil Water Resistance, Excellent Fuel Resistance, Excellent Performance, Good Cold Resistance, Good Glycol Resistance, Good Lubricant Resistance, Heat Resistance, High Fatigue Resistance, High Hydrolytic Stability, Hot Water Resistance, Impact Resistance, Ink Resistance, Oil Resistant, Pre-bake Resistance, Solvent-Based, Water Resistant

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
General Properties

Type of Product

  • Bonding agent

Curing

  • Heat curing

Parts

  • One part system

Color

  • Red

Product Benefits

  • High heat resistance
  • Excellent static and dynamic fatigue resistance
  • Excellent resistance to fluids including water, oils and fuels (including diesel and synthetic mixtures such as methanol and toluene), even at high temperatures
  • High cold resistance
  • Excellent pre-bake resistance
  • High water resistance

Applications & Uses

Markets
Applications
Application Area
Application Method
Compatible Substrates & Surfaces
Cure Method
Segment
Processing Information

Suitable Elastomers

  • Hot cast polyurethane (PU)
  • Thermoplastic polyurethane (TPU)
  • Millable polyurethane (PU)

Process

  • Pre-baking of dried Cilbond 49SF coats can improve adhesion and environmental resistance
  • The need and use of Cilcure B must be fully validated by the customer

Suitable Substrates

  • Glass fibre reinforced plastic (GFRP)
  • Various surface treated metals
  • Various metals
  • Polyamide (PA)
  • Polybutylene terephthalate (PBT)
  • Polyester (PES)
  • Polyether ether ketone (PEEK)
  • Polyphenylene oxide (PPO)
  • Polyphenylene sulfide (PPS)
  • Various other substrates

Consistency

  • Liquid

Surface Requirements

  • Free of rust
  • Grit blasted or other approved surface treatments
  • Clean
  • Free of grease
  • Free of dust
  • Free of oil

Properties

Color (Properties)
Physical Form
Appearance
Red liquid
Typical Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity (at 26°C)0.92--
Non-Volatile Solids24Wt(%)-
Flash Point-2°CAbel Pensky Method
Typical Coverage15m²/L-
Processing Parameters
ValueUnitsTest Method / Conditions
Density7.7lb/gal-
Solid Content24%-
Flash Point0°FAbel Pensky Method
Storage Temperature0 - 80°F-
Drying Time (at 80°F)45 - 60min-
Drying Time (at 100 °F - 120 °F)15 - 30min-
Typical Coverage (20 µm Dry Coating Thickness)15m²/l-
Flow Time (at 80°F)50secCup 4, DIN 53211
Flow Time (at 80°F)30secNo 3 Zahn Cup
Moulding Temperature Range160 - 400°F-
Coating Thickness (for maximum adhesion, optimum dry )min. 20µm-
Coating Thickness (for maximum environmental resistance, optimum dry )min. 25µm-

Packaging & Availability

Regional Availability
  • Asia Pacific
  • Europe
  • Global
  • India/MiddleEast/Africa (IMEA)
  • Latin America
  • North America

Storage & Handling

Shelf Life
24 months
Storage Information

Cilbond 49SF should be used within the shelf life specified on the packaging. The storage stability applies to material stored under appropriate conditions only (original unopened containers, recommended storage temperature).