Purity & High-Cleanliness Applications

High-purity engineering resins engineered for critical environments where material contamination is not an option. These stock shapes are selected for their ultra-low outgassing profiles and minimal metallic/ionic extractables, ensuring the integrity of silicon wafers, biological samples, and high-vacuum systems.

Key Highlights

Hydrolytic Stability

Maintains purity and structural integrity through repeated steam sterilization (autoclave) cycles without the degradation seen in lower-performing polymers.

Chemical Purity

Excellent resistance to "Clean-in-Place" (CIP) and "Sterilization-in-Place" (SIP) chemicals used in pharmaceutical manufacturing.

Cleanroom Compatibility

These grades are "low-sloughing," meaning they do not shed particles during mechanical use, making them ideal for moving parts in ISO Class 1–3 environments.

Minimal Ionic Leaching

PVDF Kynar 1000 is manufactured without pigments or additives, ensuring that no metallic ions or organic contaminants leach into ultra-pure water (UPW) or aggressive etchants.

Ultra-Low Outgassing

Materials like PEEK (Neat) and Ultem 1000 meet strict NASA and aerospace standards for Total Mass Loss (TML), preventing the "fogging" of sensitive optics and sensors in vacuum environments.

Technical data

Purity Grade Selection

Material Grade	Outgassing (TML %)	Outgassing (CVCM %)	Ionic Extractables	Max Service Temp	Primary "Clean" Use Case
PEEK (Neat)	0.20	0.00	Ultra-Low	260°C	Vacuum & Space Components
PVDF Kynar 1000	0.28	0.02	Lowest (Zero)	150°C	Semi-con Wet Bench & UPW
Ultem 1000	0.40	0.01	Very Low	170°C	Medical Manifolds & Analytical
PVDF Kynar 740	0.32	0.03	Low	150°C	Industrial Chemical Piping
PEEK-20PTFE	0.25	0.01	Low	260°C	Cleanroom Bushings & Wear

Application	Primary Recommendation	Why?
Semiconductor Wet Bench	PVDF Kynar 1000	The industry standard for unpigmented, ultra-pure fluid handling.
High-Vacuum / Space	PEEK (Neat)	Lowest outgassing (TML/CVCM) and highest thermal stability.
Medical Analytical Tools	Ultem 1000	Transparent, autoclavable, and chemically resistant to lab reagents.
Cleanroom Wear Parts	PEEK-20PTFE	Self-lubricating without the "dirty" carbon/graphite dust of other wear grades.
Industrial Chem-Handling	PVDF Kynar 740	High-performance chemical resistance with a standard industrial purity level.

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Frequently Asked Questions

What is the difference between Kynar 740 and Kynar 1000?

Kynar 1000 is an ultra-high-purity grade produced with the strictest control over contamination. It is unpigmented and designed specifically for the semiconductor and pharmaceutical industries. Kynar 740 is a standard industrial grade used for general chemical processing.

Why is PEEK (Neat) preferred for vacuum applications?

Standard plastics contain "volatile" molecules that escape in a vacuum. PEEK (Neat) has almost no volatiles, ensuring it stays dimensionally stable and doesn't contaminate the vacuum chamber environment.

Does machining affect the purity of these materials?

The material itself remains pure, but the machining process must be controlled. "Clean machining" involves using new tools, dedicated coolant (or dry machining), and a specialized cleaning process post-machining to remove any shop oils.

Are these materials FDA compliant?

Yes. Most Neat PEEK, Ultem 1000, and Kynar grades are FDA and USP Class VI compliant, making them safe for food contact and medical device components.