Diagnostic Guide

Gelcoat Cracks & Crazing — Cosmetic or Structural?

Spider cracks in gelcoat are common on Bay boats. Most are cosmetic. Some signal serious structural problems. Here's how to tell.

Spider cracks in gelcoat are common on Bay boats. Most are cosmetic. Some signal serious structural problems. Here's how to tell.

What to Check

1

Star cracks at impact points

Usually cosmetic — from dock impact or dropped tools. Repairs nicely with color-matched gelcoat.

2

Long parallel cracks

May indicate flexing in the laminate — worth probing for soft spots.

3

Cracks at hardware

Often water intrusion at bolt holes — needs proper re-bedding before cosmetic repair.

4

Cracks at hull-deck joint

Get this looked at — a separating hull-deck joint is a real problem.

When to Call Us

We do free assessments — we'll tell you honestly whether you need a $400 cosmetic patch or a more serious repair.

Services That Fix This

Ready to Get Your Boat in Prime Condition?

Bring your boat to our covered shop in San Rafael for full-service repair, maintenance, paint, and refits. Call (415) 524-5194 or send a message — we respond same day.

Call (415) 524-5194