Waterproof Dry Bag for Sailing: Protecting Gear from Saltwater Exposure

Sealock manufactures waterproof dry bags for sailing for wholesale and OEM buyers worldwide, engineered to protect gear from saltwater spray, full immersion, and prolonged UV exposure on deck. This document covers the company background, sealing and corrosion technology, product specifications, quality control, capacity selection, and customization terms for procurement teams sourcing marine-grade dry bags.

1. Company Overview

Sealock (YiFuLong Outdoor Gear Co., Ltd.) has designed and produced welded waterproof bags for over 20 years, operating two manufacturing facilities — one in Dongguan, China, and one in Ho Chi Minh City, Vietnam. Production is held to international compliance and social-audit standards, with documentation supplied to buyers in regulated markets.

• Established: 2003 (20+ years in waterproof bag manufacturing)
• Facilities: Dongguan, China  |  Ho Chi Minh City, Vietnam
• Certifications: ISO9001, BSCI, SMETA, HIGG, GRS, SCAN, CSR
• Services: OEM / ODM, custom logo, color, and capacity

Further detail is available on the company profile, China factory, and Vietnam factory pages.

 Figure 1: sealock marine-grade dry bag stowed on deck under saltwater spray.

2. Sealing, Material, and Corrosion Technology

Saltwater attacks gear in three ways — penetration, fabric degradation, and metal corrosion — and a marine sailing dry bag must resist all three. Sealock construction addresses each factor.

2.1 Welded, Non-Absorbent Seams

Seams are bonded by 27.12 MHz high-frequency welding rather than stitched and taped. The fused waterproof skin has no needle holes and does not wick saltwater along thread lines, removing the most common marine leak path.

2.2 Salt- and UV-Resistant Coated Fabric

Standard construction uses 500D PVC, with TPU laminate available where lower weight is required. Both coatings are non-absorbent, rinse clean of salt residue, and resist the UV degradation that breaks down lighter fabrics under continuous sun on deck.

2.3 Corrosion-Resistant Hardware and Verified Air-Tightness

Buckles and fittings are specified for marine use to resist salt corrosion, and a roll-top closure (three to four folds, buckled) traps air so a loaded bag stays buoyant overboard. Every design is validated to the 1.0 Bar test standard, with the sealed bag inflated to 1.0 Bar of internal pressure to confirm seam and closure integrity.

3. Sailing Dry Bag Product Range

The table below lists current Sealock models suited to sailing applications, with verified specifications and product pages.

Related categories include the waterproof duffle bag for crew kit, the waterproof dry bag range, and the dry backpack line.

Figure 2: Sailing dry bag range, 2L to 65L.

4. Quality Control Process

Each production run passes a fixed five-stage inspection sequence before shipment:

1. Incoming material inspection — coating consistency and denier verified on PVC / TPU rolls.
2. Weld bond check — peel tests on sample welds at run start.
3. 1.0 Bar inflation test — finished units checked for air-tightness.
4. Immersion test — sample units fully submerged and interiors verified dry.
5. Hardware load test — buckles, D-rings, and straps tested under load.

5. Capacity Selection Guide

On a sailing vessel, separate sized units are recommended over one large bag, keeping a quick-access deck bag distinct from stowed kit. Recommended sizing for a dry bag for sailing setup:

6. OEM / ODM Customization and Cooperation

Sealock supports full customization for brand and distributor orders. Standard procurement terms:

• MOQ: 300 pcs per model
• Customization: logo, color (standard high-visibility red, green, orange), capacity, and fabric (PVC / TPU)
• Sampling: 7–10 working days
• Bulk lead time: confirmed at quotation, based on order quantity
• Trade terms: FOB Guangdong; other terms negotiable

Customization Workflow

1. Inquiry and specification confirmation (model, size, fabric, logo, color)
2. Quotation and trade terms
3. Sample production (7–10 working days) and buyer approval
4. Bulk production under the five-stage QC process
5. Final inspection and shipment

Customization details are outlined on the OEM / ODM services page.

7. FAQ

Q: Is a waterproof dry bag for sailing resistant to saltwater corrosion?
A: Yes. The welded PVC and TPU skin is non-absorbent and rinses clean of salt, while buckles and fittings are specified for marine use to resist salt corrosion over repeated exposure.

Q: Does saltwater or UV exposure shorten the service life?
A: The coated fabrics resist UV degradation and saltwater absorption, so service life is governed by mechanical wear rather than salt or sun; rinsing with fresh water after use further extends it.

Q: What is the minimum order quantity and sampling time?
A: MOQ is 300 pcs per model, with samples produced in 7–10 working days. Bulk lead time is confirmed at quotation based on quantity and customization scope.

Q: Which materials and certifications are available?
A: Both 500D PVC and TPU laminate are offered. Production is certified to ISO9001, BSCI, SMETA, HIGG, and GRS, with documentation provided to support buyer compliance requirements.

Request a Quotation

For specifications, samples, or pricing on the SL-E415 or any model in the range, submit an inquiry. Sealock responds to procurement enquiries within 24 hours.