About Us

Our Purpose

Sealant Specialists/SECO is a distributor of top of the line Division 3 & Division 7 construction products. Also, we are the largest foam tape converting facility on the West Coast. Operating since 1974, we have a solid understanding of the needs of our customers.

We distribute the premier lines of commercial quality sealants, waterproofing, foam tapes and concrete related supplies such as: Tremco, Pecora, BASF, Nox-Crete, Meadow Burke and many others used in the concrete, waterproofing and glazing industries.

Our History

John Latta Associates, Inc. (JLAI) incorporated in 1974 with headquarters in Portland, Oregon.  JLAI currently does business under two DBAs:  Sealant Specialists (SS) and Seco Construction Supply (SCS).  JLAI presently operates out of 5 locations:  Portland OR, Seattle WA, Yakima WA, Spokane WA, and Boise ID.

In 1974, John Latta started distributing foam tape and insulating glass products to the window manufacturing and glazing industry.  As demand increased, an office was opened in Seattle in 1978.  The early 1980’s saw the start of the foam tape conversion process along with continued distribution.  JLAI is now the largest converter of foam tape on the west coast.

Expansion into the sealant and waterproofing markets came in the mid 1980’s.  The Boise office was added in the 1990’s along with additional products from national manufacturers of water repellents, fire stopping and deck coatings.

In 2004 Seco Construction Supply was purchased with locations in Yakima WA and Spokane WA.  SCS had a strong penetration into the concrete accessories market and brought with it a rental business supporting the concrete forming and tilt up industries.

John Latta Associates, Inc. under its two DBAs continues to serve the northwest construction market furnishing nationally known products with primary emphasis on CSI Divisions 3, 7, 9.

Seattle Office

6452 S 144th St
Tukwila, WA 98168

Spokane Office

5610 E. Broadway
Spokane, WA 99212

Yakima Office

515 So. 5th Ave.
Yakima, WA 98902

Portland Office

539 SE Division Pl #2
Portland, OR 97202

Boise Office

218 E 50th St
Boise, ID 83714

Lynnwood Office

2027 196th St SW #A106
Lynnwood, WA 98036