Renia, Ortec, Contact Adhesive, Multiple Sizes

Renia Ortec Multi Purpose Contact Cement

Renia Ortec is a professional-grade universal contact adhesive developed for footwear, orthotics, and leathercraft applications that require reliable bonding across a wide range of materials. Known for its balanced strength and flexibility, Ortec delivers dependable performance for both repair work and production environments where consistent results matter.

Formulated as a polychloroprene-based contact cement, Ortec provides strong initial grab with a practical open time that supports accurate component alignment. The adhesive supports both cold bonding and heat reactivation workflows, giving makers flexibility across different shop processes. Its clear, non-yellowing finish helps maintain the appearance of finished leather goods and footwear components.

Toluene-free and designed for multi-material compatibility, Ortec is especially well suited for standard leather bonding, heel work, and general assembly where a reliable, workshop-friendly cement is required.

Available Sizes:

• Quart (32 fl oz) - Brush attached to cap.
• Gallon (128 fl oz)

Key Features:

• Professional-grade universal contact adhesive
• Polychloroprene-based formula for flexible, durable bonds
• Toluene-free formulation
• Strong initial tack with practical working window
• Suitable for cold bonding or heat reactivation
• Clear, non-yellowing finish
• Smooth, brushable consistency for controlled application
• Made in Germany

Effectively Bonds With:

• Leather
• Rubber
• Felt
• Cork
• EVA
• TR (thermoplastic rubber)
• Foams and many common footwear materials
• Not recommended for plasticized PVC.

Application Instructions:

1. Prepare the surfaces
Ensure surfaces are clean, dry, and free of oils, dust, or finishes. Lightly roughen smooth materials such as rubber or EVA for improved adhesion.

2. Apply adhesive
Apply an even coat to both mating surfaces using a brush or roller in a well-ventilated area.

3. Allow to tack
Let the adhesive dry until tacky (typically approximately 5 to 30 minutes depending on temperature and humidity).

4. Bond surfaces
Join surfaces carefully and apply firm, even pressure. Repositioning is limited once contact is made.

5. Cure fully
Bond strength continues to build over time, with best results after approximately 24 hours. Heat reactivation may be used if required.

Common Uses:

• Footwear construction and repair
• Heel and sole attachment
• Bonding leather components and panels
• Orthotic and insole work
• Bags, belts, and general leather goods
• General workshop assembly

Specifications:

• Adhesive Type: Solvent-based contact cement
• Open Time: Approximately 5 to 30 minutes (condition dependent)
• Finish: Clear drying
• Activation: Cold bonding or heat reactivation
• Toluene-Free: Yes

Safety & Handling

• Use only in a well-ventilated area
• Follow all safety guidance on the product label and SDS
• Shipping restrictions may apply due to solvent content
• SDS or MDS for Renia, Ortec, Contact Adhesive (available upon request)

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Renia: Germany (est. 1937)

Founded in 1937, Renia GmbH is a German manufacturer specializing in high-performance adhesives for the footwear, orthotics, and leather goods industries. Renia products are developed and produced in Germany under strict quality standards and are trusted worldwide for their consistent performance in professional workshop and production environments.