State Agency Utilizes SL-B700 Float Collar Buoys to Mark Important Waterway Routes

Sealite Case Studies

State Agency Utilizes SL-B700 Float Collar Buoys to Mark Important Waterway Routes

State Agency Utilizes SL-B700 Float Collar Buoys to Mark Important Waterway Routes

By:Sealite | October 22, 2019
Application: SL-B700 Float Collar Buoy Marks Navigation and Hazard Routes for Large State Agency
Product: SL-B700 Float Collar Buoy, Regulatory Style
Location: Rivers, Reservoirs, Tributaries and Estuaries of a Pacific Northwest USA State
Date: 2019

In choppy waters, the SL-B700 bobs up and down (instead of rocking back and forth like other flat-bottomed float collar buoys), improving vertical integrity and visibility for passing boaters.

The Pacific Northwest region of the United States is a particularly challenging area in which to deploy buoys. The area has significant tidal conditions on bodies of water with direct access to the Pacific Ocean. It also has a large number of smaller tributaries, estuaries, reservoirs as well as large and small rivers. They vary in depth, current, salinity and volume of vessel traffic.

A state marine agency had several criteria to satisfy as they sought out an adaptable buoy that could be deployed in multiple locations. In addition to deployment versatility, the selected buoys had to:

  • Retain color after prolonged exposure to harsh environmental conditions
  • Resist major algae growth
  • Be self-righting if knocked over by passing vessels or exposed to significant tidal conditions

The state agency ordered Sealite’s SL-B700 Float Collar Buoys in two configurations: regulatory and hazard marks. The buoys marked exclusionary zones as well as providing messages to passing vessels of navigational hazards.

The unique design of the SL-B700 Float Collar Buoy features a tapered, concrete-filled bottom that provides a solid center of gravity. The design keeps the buoy upright rather than rocking back and forth in choppy water. This results in a completely self-righting buoy if knocked down in rough water, exposed to large wakes or in the event of a collision with a passing vessel.

The chain attachment point is rotationally molded into the buoy. It is in the shape of a slight fin to help the SL-B700 remain highly visible in the strong water currents. The fin also reduces drag on the buoy and mooring hardware to help keep the buoy stable and on station.

A 316 grade stainless bar connects the bottom mooring attachment point to the lifting eye, located on the top of the float collar. This internal bracing ensures even lifting and mooring stresses at major stress points for a long service life.

UV inhibitors and colored pigments are utilized during the manufacturing process. Color permeates completely through the hull and will never chip, peel or scrape off. The color will remain vibrant for years to come. Sealite’s polyethylene helps to inhibit marine growth thereby reducing frequency of service and maintenance.

The patented design of the SL-B700 allows for four buoys to be fit onto a single pallet, thereby minimizing shipping costs associated with larger float collar buoys.

Fast moving rivers of the Pacific Northwest are one deployment site for a state marine agency. The SL-B700 features a slight fin on it’s keel which helps keep the buoy in the water current thus reducing drag on mooring chain and cable.

Sealite’s SL-B700 allowed the state marine authority to confidently mark hazard areas and channels in a multitude of diverse locations, reduce buoy maintenance schedules, reduce the amount of required equipment to maintain multiple buoy styles, and enhance the safety of navigation to passing vessels, all while remaining on budget and ahead of their intended schedule.


“The SL-B700 has been performing better than any other buoy model or manufacturer we have on our waterways.”
— State Marine Board Official


Find Out More:

SL-B700 Regulatory Buoy

What Our Client's Say

“[Re: Sealite Wins Duke ™s Choice Award for Java Technology & the Environment “ Sealite GSM monitoring & control system], The team at Motorola were extremely impressed with Sealite’s innovative integration of the G24-Java wireless module in their GSM Monitoring & Alarm System.”

-Golan Haver

“As one of your new distributors (Belize and Honduras, Waller Marine Belize LTD), I would like to express my congratulations to you and your people in providing reliable, dependable and inexpensive products. Formerly we were distributors for a Canadian made product but these were found to be too expensive for the market and also offered only difficult and complicated programming. Our first order of lights from you (SL15 ™S) took only four days to arrive from Aussie Land, when I opened the box they were still flashing. I tested a SL60 (white) for four days (steady on) before it required a recharge…remarkable. I will be placing another order with Dana shortly keep up the good work.”

-Capt Andy Suddes

“[Re: Installation of WindTalker for kite-surfing club], The WindTalker „ is a big success here in Cyprus, thanks to your after sales support the unit is now functioning perfectly.”

-Christophe Meletiou

“We choose to sell Sealite … this is a long story, well we treat Sealite as our own and the relationship we have developed with Jeff and Chris and their attitude and commitment towards growing Sealite to this stage is remarkable. We feel at home when talking to them and the staff of Sealite and this in turn gives us more security and strength in selling products in India.”

-Aliasgar E Patrawala

“[Re: Sealite Solar-Powered LED Area Lighting system], We chose the Sealite system for the Jacobs Well Queuing Pontoon due to our previous experience with Sealite ™s product, its durability and construction.”

-Peter Taylor

“I just wanted to say thank you for the light and bracket Sealite supplied to Birkenhead Marina. As the other lights (old ones) need new batteries I will be replacing them with new lights from Sealite and the same brackets that you supplied with the light we received last week … Your product is excellent and the system of setting the light is good also. Thanks again for all your trouble.”

-Philip McGowen