Rubber to Metal Bonding Adhesive 841

(Equivalent to Cilbond 49, Thixon 406)

Rubber to metal bonding adhesive 841 is a single-coat adhesive used to bond various elastomer compounds to substrates during the vulcanization process. It is composed of a mixture of polymers, organic compounds and inorganic fillers dissolved or dispersed in an organic solvent system. This adhesive system will bond compounds based on Cast polyurethane (CPU) and Thermoplastic polyurethane (TPU) polymers to metal. 841 is a surface treatment agent for bonding of polyurethane elastomer-to-metal.

Technical Specifications

Item	Key Characteristics
Appearance	Brown Red Liquid
Viscosity @25℃, 77 ℉(Brookfield LVT Spindle 2, 30 rpm )	200-350 cps
Solids Content by Weight	20–24%
Flash Point (Seta)	-2°C
Solvent	Cyclohexanone, Xylene, Methyl isobutyl ketone.
Density	950.0 – 990.0kg/m³

Applicable Range

Used as a single-coat adhesive and in combination with a primer adhesive.Suitable for the following types of elastomer：
- Cast polyurethane (CPU), Thermoplastic polyurethane (TPU), etc.
Suitable for the following substrates:
- Metal: carbon steel, stainless steel, aluminum and various alloys, etc.

Primary Applications

Flexible Foams: Furniture cushioning, bedding, and automotive seating.
Rigid Foams: Energy-efficient insulation boards and cold chain panels.
Elastomers & Coatings: High-durability coatings, synthetic leather, and industrial seals.

Shelf Life/Storage

Shelf life is 12 months from date of shipment when stored at ＜ 37℃ in original, unopened container. Do not store or use near heat, sparks or open flame.

Precautions

This product is volatile, please close the container after use.
Solvent steam is harmful, pay attention to fire prevention in the workplace, pay attention to low ventilation, prevent long-term inhalation or long-term skin contact.
Please refer to SDS for more safety information.

Frequently Asked Questions (FAQ)

Q1: Do you have technical guidence for the application?

A: Yes, we have the official technical guidence for the application.And we can provide you fully technical support as well.

Q2: Do you provide COA and MSDS for every shipment?

A: Yes, every batch is delivered with its specific Certificate of Analysis (COA) and the latest Material Safety Data Sheet (MSDS) to ensure local regulatory compliance.

Q3: What is the minimum order quantity (MOQ)?

A:The MOQ depends on the specific type of packing. Normally one pallet is the MOQ.