CP1304/7781 — CP1304 resin on style 7781 glass fabric

Name: CP1304/7781 — CP1304 resin on style 7781 glass fabric
Brand: MatWorld

Verifiedcomposite

· CP1304/7781· Fiberglass/Polyester

Style 7781 glass fabric (550 yarn), an 8-harness satin weave that drapes readily over compound curvature, in a CP1304 polyester matrix. Glass/polyester is the low-cost commercial laminate: easy to process at room temperature, forgiving in open moulds, and adequate where loads are modest. It is the standard for marine hulls, tanks and pipework, and industrial panels, rather than for weight-critical aerospace structure. The handbook characterises it from -65 °F to 300 °F, consistent with moderately elevated service. MatWorld carries 66 tensile, compressive and shear curves for this system, digitised from MIL-HDBK-17-2F Volume 2 (US Government work, public domain).

marine hulls and deckstanks and pipeworkindustrial panels

Compliance & Regulations

?ISO 10993?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Composite Layup8 plies · 1.93 mm total

Fiber Direction

+0°

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Fiber550

MatrixCP1304

Ply Schedule

+0°CP1304/77810.2413 mm

Laminate Code

[0/0/0/0/0/0/0/0]s

Fiber angles relative to the 0° reference direction (red arrow in 3D view). 0° = longitudinal, 90° = transverse, ±45° = shear paths.

66 interactive curves for this material

Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.

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Environment

Direction

Property	Value	Unit	Conditions
Poisson's Ratio(ν)2 entries	Curve (16 pts)	-	24°C · RTA · 12-axis · Balanced Laminate [0:8] · Balanced Laminate [0:8]
↳	Curve (14 pts)	-	24°C · RTA · 21-axis · Balanced Laminate [0:8] · Balanced Laminate [0:8]
Stress–Strain Curve(σ–ε)	—	ksi	64 entriesClick to expand

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Regulatory Screening

Environmental

Safety & Biocompatibility

Quality & Standards

Industry-Specific

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.