https://www.avient.com/sites/default/files/2020-08/2020-hammerhead-application-install-guide.pdf
Stringers
Bulkheads,
Decking and
Transoms
Doors and
Cabinetry
Ceilings
and Hatches
MECHANICAL PERFORMANCE
Superior strength-to-weight ratio
PROPERTY TEST
METHOD
PANEL THICKNESS
.50" .75" 1.00" 1.50"
Core Density (lb/ft3) ISO 845 5.3 8.4 5.3 8.4 5.3 8.4 5.3 8.4
Flexural Rigidity (lb-in2) ASTM D7249 38,379 39,390 80,699 74,158 147,890 140,081 342,866 363,009
Panel Weight (lb/ft2) Calculated 0.93 1.07 1.03 1.25 1.14 1.42 1.35 1.77
Core Shear Yield (psi) ASTM C393 60 138 61 139 57 131 52 99
Max Load (lbs) ASTM C393 246 482 362 704 423 833 558 1,031
Core Shear ULT (psi) ASTM C393 81 159 81 153 70 138 62 113
Face Bend Stress (psi) ASTM C393 6,430 12,582 6,355 12,109 5,511 10,860 4,899 8,916
USES &
APPLICATIONS
SUPPORT SPAN DEFLECTION
Meets performance required for marine applications
Predictive deflection in various load cases.
Heat Length =
π
2 * Thickness
Radius = S
B
S
T = 400°F
B S
GL
AS
S/
EP
OX
Y
TA
B
M
AT
ER
IA
L
TAB TESTING OF VARIOUS INSTALLATION METHODS
BREAK
STRENGTH (LBS)
PETG Skins
with Plywood Core
1 in
1.5 in
2 in
2400
2820
2748
Hammerhead™
with 5.3 lb/ft3
2 in 665
Hammerhead™
with 8.4 lb/ft3
2 in 1084
Marine Plywood 2 in 770
Glass/Epoxy with
Plywood Core 2 in 1055
Glass/Polyester
with Balsa Core 2 in 919
L-Bracket Installation
BREAK
STRENGTH (LBS)
PETG Skins
with Plywood Core 2 in 2375
Marine Plywood 2 in 770
Glass/Polyester
with Balsa Core 2 in 797
U-Channel Installation
N
O
T
AB
BREAK STRENGTH
(LBS)
Hammerhead™
with 5.3 lb/ft3
2 in 420
Hammerhead™
with 8.4 lb/ft3
2 in 332
Marine Plywood 2 in 984
Glass/Polyester with
Balsa Core 2 in 1298
Hammerhead™
with 5.3 lb/ft3
Core Density -
ITW Plexus
NA 501
Hammerhead™
with 8.4 lb/ft3
Core Density -
ITW Plexus
NA 1156
Hammerhead™
with 8.4 lb/ft3
Core Density -
Crestomer
1152PA Adhesive
NA 1530
Hammerhead™
with 8.4 lb/in3
Core Density -
Crestomer
M1-30 Adhesive
NA 1471
Mixed Conditions
ITW Plexus MA420 adhesive was used in all tab
testing installations except where noted.
BREAK STRENGTH
(LBS)
Hammerhead™
with 5.3 lb/ft3
2 in 420
Hammerhead™
with 8.4 lb/ft3
2 in 332
Marine Plywood 2 in 984
Glass/Polyester with
Balsa Core 2 in 1298
Hammerhead™
with 5.3 lb/ft3
Core Density -
ITW Plexus
NA 501
Hammerhead™
with 8.4 lb/ft3
Core Density -
ITW Plexus
NA 1156
Hammerhead™
with 8.4 lb/ft3
Core Density -
Crestomer
1152PA Adhesive
NA 1530
Hammerhead™
with 8.4 lb/in3
Core Density -
Crestomer
M1-30 Adhesive
NA 1471
ADHESIVE
DESCRIPTION
ADHESIVE
GRADE MANUFACTURER
AVERAGE
BOND
STRENGTH
(PSI)
STANDARD
DEVIATION
FAILURE
MODE
BEST ADHESION
2k Urethane 75421 Lord 2281 184 Substrate
Cohesive
2k Acrylic SA1-705 GRY1 AccraLock 2211 78 Substrate
2k Acrylic Plexus MA420 ITW 2171 262 Substrate
2k Acrylic SA10-05 Blk1 AccraLock 2102 138 Substrate
2k Urethane 75451 Lord 2047 68 Cohesive
2k Acrylic SA1-705 GRY 1:2 AccraLock 1966 68 Substrate
2k Acrylic Scotchweld 8010 3M 1907 61 Adhesive
Cyanoacrylate Gorilla Glue Gorilla Glue 1885 432 Cohesive
2k Acrylic Crestabond PP-04 Scott Bader 1873 281 Substrate
2k Acrylic SA10-05 Blk 10:2 AccraLock 1779 127 Cohesive
2k Urethane 75422 Lord 1716 190 Cohesive
Adhesive
2k Urethane 75452 Lord 1535 98 Adhesive
2k Methacrylate Polyfuse Icon
Containment 1610 98 Adhesive
INTERMEDIATE ADHESION
2k Acrylic FA10-05 Blk
C010817 AccraLock 724 58 Cohesive
2k Acrylic FA10-05 Blk1 AccraLock 722 44 Cohesive
2k Epoxy Loctite Epoxy
Instant Mix Loctite 508 81 Adhesive
2k Epoxy Gorilla Glue Epoxy Gorilla Glue 341 198 Adhesive
NOT RECOMMENDED
2k Epoxy Loctite Epoxy
Marine Loctite 0 0 No bond
ADHESIVE SELECTION
Brands identified are owned by the manufacturers of the adhesive products.
1 surface sanded with 220 grit scuff prep 2 surface primed with 459T
FASTENER TYPE BENEFITS CONSIDERATIONS
Through-Bolting Best mechanical
locking system
Need back side
access to panel
Screw-In Anchor Highest pullout
strength Requires pilot hole
Cup Washer Spreads
compressive load
Requires relief hole;
For substructure and
hard point attachment
Wide Grip
(Bulb-Style)
Rivet
Ease of use—no
installation torque
limitations
For lower
load attachments
Sheet Metal or
Wood Screw
Readily available,
low cost
Penetrate both skins
for improved pullout
Shoulder Washer Limits
compressive load
Requires relief hole;
For substructure and
hard point attachment
For more information on installation, adhesives, and fasteners
for specific applications, please contact Avient.