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Boltaron® 4335: A High-Performance, Cost-Efficient Alternative to KYDEX® T

When you’re thermoforming parts for aerospace interiors, medical equipment, or electronic housings, material choice can make or break your budget and schedule. KYDEX® T has long been a go-to for its strength and fire performance, but it comes with drawbacks—longer lead times, higher minimum orders, and higher costs.

Enter Boltaron® 4335—a high-impact, flame-rated thermoplastic sheet that matches KYDEX T’s performance in critical areas, while offering a smoother path to production.

Why More Manufacturers Are Switching to Boltaron® 4335

Boltaron 4335 is a rigid PVC-based material with serious mechanical and thermal stability. With a tensile strength of 6,000 psi and flexural strength of 9,200 psi, it holds its shape under stress. Its impact resistance is even more impressive—18 ft-lb/in—making it ideal for tough, high-traffic environments.

It also earns top marks for flammability compliance: UL 94 V-0, 5VA, and FAR 25.853(a) for vertical burn. It’s safe for use in aircraft cabins, public kiosks, and hospital-grade applications.

From a process standpoint, Boltaron 4335 shines. It forms easily at 335–370°F and doesn’t require drying—unlike some other plastics that add time and cost to every cycle.

Boltaron 4335 vs. KYDEX T: Side-by-Side

Feature

Boltaron® 4335

KYDEX® T

Minimum Order

500 lb

600 lb

Lead Time

4 weeks

5-8 weeks

Impact Resistance

18 ft-lb/in

~15 ft-lb/in

Forming Temp

335–370°F

365–390°F

Drying Required

No

Sometimes

Flame Rating

UL 94 V-0, 5VA

UL 94 V-0, 5VA

While KYDEX® T is a proven material, Boltaron 4335 offers nearly identical performance, with more flexibility for smaller runs and tighter timelines.

Applications That Benefit

Boltaron® 4335 works well in:

  • Aircraft-compatible storage and display systems

  • Durable kiosks and point-of-sale enclosures

  • Medical and lab equipment housings

  • Pet carriers used in aviation

  • Public transportation display panels

It comes in a wide variety of colors, textures, and sheet sizes—up to 60″ x 120″—with custom options available.

Make the Switch Without the Hassle

If you’re looking to reduce lead times, lower your MOQ, and still meet demanding specs for strength and flame resistance, Boltaron® 4335 is a smart upgrade. It’s engineered for high performance, manufactured for efficient forming, and designed to save you time and money.

Let’s get your next project off the ground.
Contact RapidMade today to request a quote, material sample, or expert support. We’ll help you make the switch—and make it count.