Semi-Permanent AEM Rubber Components Mold Release Agent Peroxide Cure Turbocharger Hose Grade

Semi-Permanent Mold Release Agent for AEM Rubber Components

Product Introduction

Lubekote LK-9560-AEM is a purpose-formulated semi-permanent mold release agent designed for AEM (Ethylene Acrylate Elastomer, also known as Vamac) rubber component manufacturing. AEM elastomers have gained significant adoption in automotive under-hood applications, particularly turbocharger hoses, air ducts, and charge air cooler (CAC) connectors, where their unique balance of heat resistance (up to 175°C continuous), oil resistance, and low-temperature flexibility (-40°C) surpasses traditional elastomers. However, AEM's processing characteristics—high compound viscosity, strong adhesion to metal during peroxide curing, and sensitivity to surface contamination—require a release agent specifically designed for this elastomer family. LK-9560-AEM combines a specialized release polymer with a carefully balanced solvent system that provides reliable semi-permanent release without interfering with AEM's peroxide or diamine curing chemistry.

Key Features & Benefits

• AEM-Specific Formulation: Engineered for AEM's unique surface chemistry and peroxide curing behavior, providing reliable release where generic agents fail due to cure interference or inadequate release force reduction.
• 200°C Thermal Stability: Maintains release film integrity through AEM's typical 170-190°C curing cycles and post-cure operations, without thermal degradation that can cause carbonaceous mold deposits.
• 6-8 Cycle Semi-Permanent Performance: Reduces application frequency in turbocharger hose production, where complex mandrel geometries require consistent release for quality and productivity.
• Peroxide and Diamine Cure Compatible: Formulated to be non-reactive with both peroxide cure systems (most common for AEM) and diamine cure systems, avoiding cure inhibition or scorch time alteration.
• No Surface Contamination: Zero transfer to AEM parts ensures clean surfaces for subsequent bonding, clamping, or assembly operations typical in turbocharger system integration.
• Mold Surface Protection: Provides mild corrosion inhibition for steel molds exposed to acidic peroxide decomposition byproducts generated during AEM curing.

Why Choose Us

With 12+ years in rubber processing chemicals and 10 patents in release agent technology, we have developed deep expertise in specialty elastomer processing. Our R&D team has collaborated with AEM compounders and turbocharger system manufacturers to validate LK-9560-AEM against the specific requirements of this demanding application. Our ISO 9001:2015 certified facility performs advanced testing including TGA for thermal stability validation, GC-MS for trace extractables analysis, and rheometer testing (MDR) to verify zero impact on AEM curing kinetics. We provide comprehensive technical support including compound-specific compatibility testing, application method optimization for complex hose geometries, and on-site trials with mold preparation and process parameter guidance. Our products are trusted by tier-1 automotive suppliers across Asia, Europe, and North America. Free evaluation samples with detailed technical data package are available for qualified customers.

Technical Parameters

Application Instructions

1. Mold Preparation: Clean mold surface thoroughly with compatible solvent cleaner. Remove all AEM compound residues, carbon deposits, and previous release agent. Pay special attention to mandrel surfaces for hose applications.
2. Application: Apply LK-9560-AEM using HVLP spray gun at 1.5-2.0 bar atomizing pressure. Apply 2-3 light, uniform coats with 45-60 second intervals for complete solvent evaporation between coats.
3. Curing: Allow 3-5 minutes at mold temperature (170-190°C) for complete thermal cross-linking of the release film. A properly cured film will be visibly dry and non-tacky.
4. Production Monitoring: Monitor release force during production. When release quality begins to degrade (typically 6-8 cycles for complex turbocharger hose geometries), apply a single touch-up coat.

Frequently Asked Questions (FAQ)

Q: Can LK-9560-AEM be used with other acrylate elastomers like ACM?
A: While LK-9560-AEM is optimized for AEM (Vamac), it has shown good performance with ACM (polyacrylate) elastomers in customer evaluations. We recommend testing with your specific ACM compound and processing conditions.

Q: Does it affect the low-temperature flexibility of AEM parts?
A: No. The non-transfer formulation ensures zero release agent residue on finished AEM parts, so low-temperature flexibility (typically -40°C for AEM) and all other physical properties are completely unaffected.

Q: What is the recommended storage condition?
A: Store in a cool, dry, well-ventilated area at 5-35°C. Keep containers tightly sealed. Protect from moisture and direct sunlight. Shelf life is 12 months from date of manufacture in unopened containers.

Q: Is it suitable for AEM compounds with carbon black filler loading above 50 phr?
A: Yes, LK-9560-AEM is effective across the typical AEM carbon black loading range (30-80 phr). Higher filler loadings may require slightly more frequent touch-up applications due to increased compound abrasiveness.