Composite Panels - H8PP 18oz WR
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Due to anisotropic properties of honeycombs, MIL handbook 17B does not recommend ASTM C393, or 3 point bend test as a valid indicator of honeycomb cored panel behavior. It is viewed as a possible quality control test but not indicative of the real attributes of the structure. It is generally felt that a better indicator would be the ASTM D 6146-99) (Standard Test Method for Two-dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load) or also known as "The Hydramat test". These tests have produced results that validate the accompanying Strength of Materials Data. The viscoelastic behavior of Nida-Core Polypropylene Honeycomb will typically permit far greater deflections without structural failures so the Deflection at Load is supplied for comparison but this does not imply a Load to fail.
All tests carried out by independent laboratory. This information is provided in good faith and is subject to modifications without prior notification. It does not constitute a commitment, neither a contractual document. Nida-Core Corp will not assume any liability form use or misuse of data presented herein.
Assessment of suitability is the responsibility of end user only.
Material Type |
Total Sandwich Thickness |
Modulus |
Max Ply |
% of each Ply's Ultimate Strength |
Bending Stiffness |
Total Weight |
Flatwise Compression Fmax/ Area (PSI) |
Nida-Core H8PP 10 mm + 18 oz WR both sides |
0.448 |
1.95 0 1.95 |
42000 0 42000 |
100 0 100 |
4972 |
0.662 |
188 |
Nida-Core H8PP 13 mm + 18 oz WR both sides |
0.568 |
2.25 0 2.0 |
26300 0 26142 |
100 0 88.27 |
8929 |
0.712 |
188 |
Nida-Core H8PP 20 mm + 18 oz WR both sides |
0.808 |
2.25 0 2.0 |
26300 0 26189 |
100 0 88.18 |
18642 |
0.812 |
188 |
Nida-Core H8PP 25 mm + 18 oz WR both sides |
1.058 |
2.25 2.3 2 |
26300 20727 26215 |
100 0 88.27 |
32521 |
0.917 |
188 |
Deflection values based on 200lb point load centrally with simple support for 18 oz WR panels with H8PP core.
Deflection Values |
Span |
Span |
Span |
Core thickness MM |
24" |
36" |
48" |
10 |
0.12" |
0.27" |
0.48" |
13 |
0.067" |
0.15" |
0.27" |
20 |
0.032" |
0.072" |
0.13" |
25 |
0.018" |
0.04" |
0.073" |
38 |
0.008" |
0.018" |
0.033" |
50 |
0.005" |
0.011" |
0.019" |
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Gel Coat Color Options
Midnight |
Evergreen GA904 |
Candy Apple RA699 |
Cabernet MA206 |
Cobalt LA855 |
British Racing GA900 |
Sunset YA543 |
Scarlet RA698 |
True Blue |
Emerald City GA898 |
Tiger Lily YA551 |
Holiday Punch RA686 |
Bel Air LA861 |
Teal GA899 |
Aztec YA542 |
Passion PA231 |
| Sky LA849 |
Combat GA894 |
Canary YA541 |
Mardi Gras |
Pitch |
Bark NA843 |
Bisque NA848 |
Nomad NA857 |
| Tin Man AA740 |
Wheat NA851 |
Sun Tan NA845 |
Sand Stone NA854 |
Londan AA739 |
White Shadow WA821 |
Dune NA847 |
Pebble NA846 |
| Seattle IA507 |
Pure WA813 |
Buck Skin IA505 |
Tangle Wood AA725 |
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| Primer \ Sanding Colors | |||||||
| Charcoal AJ046 |
Storm AO83 |
Pelican |
Pale Rider WJ029 |
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