Specification
Project Name/Project Number/26-Aug-15  07 65 00  (Masonry Accessories) Flexible Flashing 
    DuPont™ Thru-Wall Flashing 
© 2009 DuPont. DuPont™, and all products denoted herein with ™ or ® are trademarks or registered trademarks of E.I. 
du Pont de Nemours and Company. All rights reserved. 
(Specifier Note: Product Information is proprietary to DuPont™ Flashing Systems. If additional products are 
required for competitive procurement, contact DuPont Building Innovations for assistance.) 
2.1 MANUFACTURER 
A.  DuPont; 4417 Lancaster Pike, Chestnut Run Plaza 728, Wilmington, DE 19805; 1-800-44-TYVEK (8-
9835); http://www.construction.tyvek.com 
2.2 MATERIALS 
(Specifier Note: DELETE products not required for project.) 
A. Self-Adhering – Straight Flashing: 
1. Basis of Design: Self-adhering straight flashing membrane tape is based on DuPont
™
 StraightFlash
™
2. Description: 
a.  Face Material Composition: Textured polyethylene laminate barrier. 
b. Face color: white 
c.  Adhesive composition: Butyl adhesive 
d. Thickness: 30 mil 
e.  Release Liner: 1 piece siliconized paper 
f.  Dimension: [4 inches wide by 150 feet or 9 inches wide by 125 feet] 
AND/OR
(Specifier Note: When specifying brick mold windows contact DuPont
™
 Tyvek
®
 Specialist for additional 
instructions) 
B. Self Adhering -- Dual-Sided Straight Flashing 
1.  Basis of Design: Dual-sided, self-adhering straight flashing membrane tape is based on DuPont
™
StraightFlash
™
 VF 
2. Description:  
a.  Face Material Composition: Spunbonded polyethylene 
b.  Face Color: white 
c.  Adhesive Composition: Dual-sided butyl adhesive 
d.  Thickness: 30 mil 
e.  Release liner: 2-piece siliconized paper 
f.  Dimension: 6 inches wide by 125 feet 
AND/OR 
C. Self-Adhering – Flexible Flashing 
1.  Basis of Design: Self-adhering flexible flashing membrane is based on DuPont
™
 FlexWrap
™
. 
2. Description: 
a.  Face Material Composition: Conformable textured polyethylene laminate barrier. 
b. Face color: White. 
c.  Adhesive composition: Butyl adhesive 
d. Thickness: 70 mil 








