CNSL & Sustainability

Engineered Renewable Chemistry

Built for Predictable Performance.

Palmer is built on one chemistry: cashew nut shell liquid (CNSL).


CNSL is a renewable, non-petroleum feedstock with a unique molecular structure that enables high thermal stability, friction control, durability, and performance consistency across demanding, performance-critical applications.


At Palmer, CNSL is not a marketing claim.


It is our technology platform—engineered for predictable, repeatable performance across qualification, validation, and production.

What Is CNSL?

Cashew nut shell liquid (CNSL) is derived from the shells of cashew nuts—an agricultural byproduct that would otherwise be discarded or burned.


Through controlled processing, particle engineering, and disciplined formulation, CNSL becomes a versatile, high-performance chemistry capable of replacing petroleum-derived and phenol-based systems in demanding environments.

Why Palmer Built Its

Platform Around CNSL

Palmer’s focus on CNSL is intentional and strategic.


By engineering all materials from a single renewable feedstock, we are able to:


  • Maintain formulation consistency across programs
  • Reduce variability during reformulation and scale-up
  • Accelerate validation and qualification cycles
  • Minimize requalification risk
  • Deliver predictable, repeatable performance across global production



This disciplined platform approach allows Palmer to innovate responsibly—without introducing unnecessary exposure to customers.

Sustainability Without Performance Trade-Offs

Many sustainability initiatives fail because they force manufacturers to choose between

environmental goals and performance certainty.


Palmer eliminates that trade-off.

Our CNSL-Based Materials Are Engineered To:

Meet Or Exceed Petrochemical Alternatives

Withstand Demanding Thermal, Frictional, And Mechanical Stress

Support Long Product Lifecycles

Align With Evolving Regulatory Requirements

Sustainability at Palmer is engineered at the molecular level—validated through structured

development and documented testing.

Replacing Petrochemical and Phenol-Based Systems —Responsibly

Cashew nut shell liquid (CNSL) is derived from the shells of cashew nuts—an agricultural byproduct that would otherwise be discarded or burned.


Through controlled processing, particle engineering, and disciplined formulation, CNSL becomes a versatile, high-performance chemistry capable of replacing petroleum-derived and phenol-based systems in demanding environments.

Application-Driven Sustainability

Palmer’s CNSL-based materials support:


  • Friction and braking systems
  • Industrial and power transmission
  • Coatings, epoxies, and composite systems
  • Specialty and custom formulations


In every case, sustainability is achieved through engineering discipline—

not compromise.

Sustainability You Can Validate

Palmer’s approach is grounded in:


  • Renewable feedstock origin
  • Measurable performance data
  • Lifecycle awareness
  • Documented validation processes
  • Stage-Gate development discipline

This is sustainability engineers, quality teams, and OEM leaders can stand behind.

Talk to a Materials Expert