Alro logo Alro Steel was established in 1948 by Al and Robert Glick and has grown to include Alro Plastics, Alro Industrial Supply and Alro Metals Outlet.

Alro Plastics Product: Boltaron® 4335

ABS Sheet

Size and Availability:

Sheet Stock:
- Thickness: 0.028” up to 0.250” thick
- Widths: Up to 60” wide
- Lengths: Up to 120” long
- Custom sizes, thicknesses on request
- Color(s): Full range of colors
- Surface Textures: Wide range, please inquire

ABS Sheets  ABS Sheets
Boltaron 4335 is a proprietary, fire retardant, extruded thermoplastic alloy offering extreme durability, chemical resistance, and a UL 94 V-0 rating while exhibiting exceptional physical properties. It offers Izod Impact resistance of 18 ft lbs/in (953 J/m), significantly improving the durability of thermoformed components versus FR-ABS and other competitive sheet.

In addition, Boltaron 4335 is non-hygroscopic, eliminating the time and costs associated with pre-drying other thermoplastics. It also offers other exceptional physical properties, extreme formability and consistent surface quality, and is available in unlimited custom colors with low minimums and fast turnarounds.

As a result, leading thermoformers and original equipment manufacturers seeking an uncompromising combination of formability, durability, chemical resistance, and regulatory compliance specify Boltaron 4335 for thermoformed and fabricated housings, enclosures, and displays.


  • Izod impact 18 ft-lb/in. (953 J/m)
  • FAR 25.853 (a) Compliance
  • Inclusion-free surface quality
  • Unlimited colors, lot-to-lot consistency
  • Extreme formability


  • Medical device enclosures
  • Electronic equipment housings
  • Kiosk housings
  • Store fixtures and displays
  • Kennel housings