Bostik offers a unique family of web adhesives that provide many
advantages for customers and simplifies the use of adhesives
in their manufacturing processes.
What is a Web Adhesive?
Webs are hot melt adhesives that have been converted into a non-woven that handles like
a fabric. Polyamide, polyester, and polyurethane polymers are used to produce a variety of
web products. They can be made by a modified melt blown process for the standard web
adhesives or through a modified blown film process to make the Sharnet® web products.
Web
adhesives
Smart help:
1-800-726-7845
Standard Web Adhesives
• Made in a fine filament pattern that offers good
textile hand and uniform adhesive coverage.
SMART SOLUTIONS FOR TRANSPORTATION AND ASSEMBLY
• Basis weights range from 15 to 100 grams per
square yard.
• Standard width is 60 inches; however custom
widths are available from 10 to 75 inches.
Sharnet® Web Adhesives
• Produced through a foam fibrillation method that
creates a coarser pattern web.
• Basis weights range from 12 to 60 grams per
square yard.
• Standard width for these webs is 60 inches, with
custom widths available from 10 to 75 inches.
TEXTILE BONDING
AND LAMINATING
AUTOMOTIVE
INTERIOR ASSEMBLY
SEATING
COMPOSITE
MANUFACTURING
PANEL FORMATION
FURNITURE
• Polymer blends combine
the properties of two or more polymer types as
well as the addition of additives to achieve desired
web characteristics.
Though the two manufacturing processes share some similarities, each is complemented
by the other’s unique formulation and performance features. The complete product mix
makes Bostik one of the market leaders in web adhesive technology.
Bostik, Inc.
11320 W. Watertown Plank Road | Wauwatosa, WI | 53226 | USA
an Arkema company
www.bostik-industrial.com
10.27.15
PA145
Nylon
151
145
250,000 @ 180˚C
141
Fair
Excellent
140
Textile bonding. Good chemical
resistance
PE75
Polyester
90
82
160,000 @ 180˚C
85
Good
Poor
75
Low melt web for textile bonding
PE85
Polyester
100
90
150,000 @ 180˚C
93
Excellent
Poor
88
Low melt web for textile bonding
Environmentally friendly
Polyester
115
103
140,000 @ 180˚C
105
Excellent
Poor
100
Low melt web used in leather
seat bonding
• Thermoplastic adhesives cannot be subjected to applications
where elevated temperatures might reactivate the adhesive.
PE120
Polyester
131
120
125,000 @ 215˚C
132
Excellent
Good
120
Medium melt web for headliner
and textile uses
• The base polymer chemistry impacts the softening and melting
temperatures, which affect processing conditions.
PE165
Polyester
175
165
140,000 @ 215˚C
180
Excellent
Excellent
165
High melt web for textile and
automotive
PE170
Polyester
170
170
145,000 @ 215˚C
177
Excellent
Good
170
High melt web for textile and
automotive
Sharnet® Web Adhesive Selector
• Water and solvent resistance will vary, depending on the base
chemistry of the web.
Product
Choosing the right basis weight
• The adhesive pattern and permeability vary depending on the web
manufacturing process.
• Uniformity will influence bond consistency and certain performancerelated ratios, such as bond strength-to-porosity.
• Higher basis weight web adhesives reduce the permeability of the bond.
• Lower basis weight web adhesives could result in bond failure.
• Determining the ideal basis weight requires consideration of the
substrates being bonded, base chemistry of the web, as well as the
activation temperature and other processing requirements.
SPA110
Base
Polymer
Type
DSC
M.P.
(°C)
Thermosel
Viscosity
(cP)
Minimum
Activation
Temperature
(°C)
Wash
Resistance
Nylon
100
475,000 @ 180˚C
105
Fair
Dry Clean
Resistance
Excellent
Product
PA115
Elevated
Temperature
Resistance
(°C)
Comments
105
Medium melt temperature
Outstanding adhesion properties
PE85
PE120
PE75
340,000 @ 180°C
113
Good
Excellent
135
SPA122
Nylon
113
350,000 @ 180˚C
113
Good
Excellent
121
General purpose, versatile
adhesive for textile,
non-woven, and foam
SPA128
Nylon
115
1,375,000 @ 180˚C
125
Good
Fair
121
Specialty adhesive for
bonding to glass-filled
polypropylene substrate
SPA110
110
Adhesive for automotive
projects on foam (polyester
or polyurethane)
SPA122
SPE118V
80,000 @ 215˚C
112
Excellent
Good
Polyurethane
143
N/A
149
Excellent
Excellent
150
Excellent bonding to non
polyolefin substrates
• Bostik offers fire retardant (FR) Sharnet web adhesives for applications
where fire retardancy is a performance requirement.
SH4275FR-A
Polyester
120
409,000 @ 210˚C
130
Excellent
Good
120
Flame retardant web adhesive
for transportation and assembly
• Fire retardant Sharnet® web adhesives are available in a variety of basis
weights and chemistries to achieve the best bond performance.
SPA145FR-A
Nylon
143
182,000 @ 210˚C
150
Fair
Excellent
140
Flame retardant nylon
adhesive used in automotive and
aerospace
®
PE103
110
SPU131
Fire retardancy
PA145
Nylon/EVA
117
Customizable for width and
basis weight
Substrate Compatibility
SPA111
Polyester
Can be formulated with
additives (e.g. fire retardants)
Substrate Guide
Medium melt temperature
Higher heat resistance
than SPA110
SPE118V
Yes = •
No = –
Recuced material waste
Consider viscosity, solvent and water resistance
• Viscosity can affect bond performance of some multi-layer,
specialty laminates.
Good bond-to-porosity ratio
Simplified application
100% solids
PE103
Breathable bonds
ol
PV ic
DF
Tr
ea
te
d
PP
Headliner and textile adhesive
en
115
Ph
Excellent
I
Fair
PE
115
s
400,000 @ 180˚C
as
115
EK
125
PE
Nylon
rg
l
PA115
Comments
um
Dry Clean
Resistance
Product
Bostik’s web adhesives are thin, heat-activated, fabric-like materials that vary in basis
weight and polymer chemistry. The flexibility and versatility of the web adhesives
accommodate manufacturers’ growing interest in new substrates and offer several
advantages over other bonding options: (picture below)
be
Wash
Resistance
Elevated
Temperature
Resistance
(°C)
in
Minimum
Activation
Temperature
(°C)
Fi
• Typical activation temperatures range from 170⁰F to 330⁰F.
Thermosel
Viscosity
(cP)
um
Consider the melting temperatures or softening point
DSC
M.P.
(°C)
Al
• Bond performance is impacted by the base chemistry of the web.
B&R
M. P.
(°C)
S
• The base polymers –polyester, polyamide, and polyurethane- or
blended alloys used of Bostik’s web adhesives offer unique benefits
for performance, handling time, and manufacturing throughput.
Base
Polymer
Type
AB
Selecting the correct base polymer
Benefits of Web Adhesives
d
Le
at
he
Ur r
et
ha
ne
Fa
Fo
br
am
ic
M
et
al
s
PV
C
There are several factors to consider in choosing the right web adhesive.
Standard Web Adhesive Selector
W
oo
Choosing the Right Web Adhesive
PE165
PE170
SPA111
SPA128
SPU131
SH4275FR-A
SPA145FR-A
The chart above provides typical substrates with which Bostik’s web adhesives have been used, but is not a guarantee of suitability. Bostik
recommends evaluating the performance of a web adhesive in individual applications to ensure performance requirements are achieved.