GACO GR1628‑5 vs. GACO S4200‑5 — What’s the Difference?

Comparison Table (Facts from your tabs)

Feature	GACO GR1628‑5 GacoRoof (Gray)	GACO S4200‑5 GacoFlex High Adhesion (White)
Product Line	GacoRoof (consumer/contractor grade)	GacoFlex S42 Series (commercial/professional grade)
Key Strength	Withstands permanent ponding water	High‑adhesion silicone for almost any roof substrate
System Type	2‑coat system	1‑coat system in many cases (due to high adhesion)
Primer Needed	Not specified	Often no primer needed
Rain‑Ready Time	Can be rained on after 2 hours	Not specified
Warranty	50‑year limited warranty	Not listed on page
Color	Gray	White (high reflectivity)
Special Features	Will not break down; simple consumer‑friendly system	Covers more area per gallon; excellent peak‑hide on granulated surfaces
Best Use Case	Homeowners, DIY, simple roof restoration	Contractors, mixed‑material roofs, commercial buildings
Price (from your tabs)	$185.95	$215.55

This is the consumer‑friendly silicone coating. It’s designed for:

It’s a 2‑coat system, meaning you must apply two layers for full performance.

This is the professional/commercial‑grade silicone coating.

It’s built for:

It’s more advanced and more versatile than GacoRoof.

Save this product for later

Best for Adhesives & Glue, Fasteners, Paint Accessories