Special Rust Inhibitor (SRI) - is a pretreatment that is applied to the metal components prior to the addition of the LCN powder coat finish, standard or custom.  This combination (SRI pretreatment / Powder Coat finish) greatly exceeds the ANSI/BHMA standard A156.4, for corrosion resistance and is for installations requiring a higher level of protection against weathering.

LCN 4040XP-RW/PA sets a new standard for reliability, longevity and value with a beefier design and extraordinary performance testing that goes far beyond industry requirements. We built the 4040XP from the inside out, combining tougher, bolder construction with proven LCN technology. The result is a closer that’s stronger, smarter and delivers remarkable value in a variety of applications.

Features
44% increased bearing load capacity
Strongest pinion ever- at 3/4” journal diameter
Widest bearing ever- at 5/8”
Stronger pinion teeth
New V-shield™ seal with 20% longer life
XP = eXtra Protection in real world applications
Cast Iron
SRI = Special Rust Inhibitor
Forged Steel Arm
Double Heat Treated Steel Pinion
All Weather Fluid
Non-Handed
LCN® Fast™ Power Adjust
Fast & Accurate Installation
UL & cUL Listed
Tested and certified under ANSI Standard A156.4, grade one

Specifications
4040XP closer shipped with EDA arm, standard plastic cover, and self reaming and tapping screws
Non-sized cylinder is adjustable for interior doors to 5’0” and exterior doors to 4’0”
Closer can mount hinge side, top jamb, or parallel arm (with PA bracket) on either right or left swinging doors
Closers to meet ADA requirements
Standard or optional custom powder coat finish
Optional plated finish on metal cover, arm and fasteners
Optional SRI primer for installations in corrosive conditions is available with powder coat only
UL and cUL listed for self-closing doors without hold-open
4040XP can be used with all 4040 accessories

Installation video