When is the tripolymer the right cartridge?

When the joint is masonry, concrete, glass, vinyl or tile. Those are on its list and not on the polyurethane or MS hybrid lists, which cover metal and membranes respectively.

How long does it take to cure?

The maker lists 2 hours to tack free and 4 to 6 days to cure. That is the longest cure in the cartridge range, so plan the detail work ahead of anything that has to go over it.

Is it suitable for EPDM, TPO or PVC?

Those membranes are not on this list. The MS hybrid sealants are the ones listed for EPDM, TPO and PVC: the black KST058310 over aged TPO and PVC as they are, the white over TPO and PVC primed with KST058700.

The 10.3 oz cartridge, 24 per case, suits scattered detail work. KST058401 is the 29 oz cartridge, 6 per case, for long continuous runs where reloading costs more than the bigger tube.

This is a solvent-based product, so it ships as regulated freight, quoted with the order. Stocked cases go out in 1 to 3 business days.

Roofing sealants

KST058400 Uniflex Tripolymer Roofing Sealant, White, 10.3 oz Cartridge

Tripolymer sealant
Sold by the case

The white tripolymer cartridge, 10.3 oz and 24 per case. A solvent-based sealant with the broadest substrate list in the range, from coated metal and brick to glass, vinyl, tile and asphalt, applied from 0 F to 140 F.

Key benefits

The widest substrate list of the cartridge sealants: coated metal (Kynar), brick, concrete, glass, vinyl, steel, tile, wood and asphalt
Listed for application from 0 F to 140 F, which covers cold-weather detail work
Service temperature listed from -40 F to 180 F
Listed tack free in 2 hours, with cure given as 4 to 6 days
10.3 oz cartridges, 24 per case, with a 29 oz cartridge as KST058401 for long runs

Priced per project

Send the quantity and the delivery ZIP. We reply within one business day.

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In stock Confirm the quote, and your order ships in 1–3 business days from confirmation.

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Shipping & returns

Overview

The tripolymer is the cartridge for everything that is not metal or membrane. Brick, block, concrete, glass, vinyl, tile, wood and asphalt are all on its list, along with coated metal (Kynar) and steel, which makes KST058400 the tube that handles a coping joint, a skylight frame and a panel lap without swapping products.

It is a solvent-based sealant, and the stated numbers reflect that: application from 0 F to 140 F, which is the widest application window in the cartridge range, service from -40 F to 180 F, tack free in 2 hours and cure given as 4 to 6 days. White is the color for white coated roofs and light masonry; KST058410 is black and KST058450 is clear, and the same white material comes as the 29 oz KST058401 for long runs.

Application

Prepare a clean, dry, sound joint. Rake out old sealant, brush porous masonry free of dust, and degrease metal and glazing.
Prime by substrate where the system calls for it: a metal primer on steel, a concrete primer on cured concrete, the stated preparation on glazing.
Seal and reinforce the details first, then coat the field, so nothing has to be reopened after the base coat is down.
Gun a full bead and tool it into the joint so both faces wet out. On porous brick and block, work the bead in rather than laying it on.
Follow the manufacturer’s product data sheet for joint design, bead size, cure and what may be applied over the sealant and when.

Ordering

KST058400 is sold by the 10.3 oz cartridge and by the case of 24. Stocked cases ship in 1 to 3 business days, and anything not on the shelf is ordered in and runs 1 to 2 weeks. This is a solvent-based product, so it ships as regulated freight, quoted with the order. Send the part numbers, quantities, site ZIP and your dates through the quote form; every price is quoted per project.

Where it's used

Masonry parapets and copings

Brick, block and concrete coping joints and wall terminations, where the substrate is porous and the joint keeps moving with the building.
Glazing and skylight frames

Frame and curb joints around skylights and roof glazing, which is why glass and vinyl are on the maker's substrate list.
Coated metal and steel details

Panel laps, fastener heads and trim joints on coated metal (Kynar) and steel, gunned and tooled before the coats go on.
Tile roof terminations

Ridge, hip and penetration details on tile roofs, where the sealant has to grip a hard glazed surface.
Cold-weather detail work

Joints sealed down to the listed 0 F application limit, ahead of the field coats when the weather allows them.

Specifications

Specifications: KST058400 Uniflex Tripolymer Roofing Sealant, White, 10.3 oz Cartridge
Manufacturer	Sherwin-Williams (Uniflex line)
Part number	KST058400
Color	White
Pack sizes	10.3 oz cartridge

Performance
Technology	Solvent-based tripolymer
Case quantity	24 cartridges per case
Recommended substrates	Coated metal (Kynar), brick, concrete, glass, vinyl, steel, tile, wood, asphalt and other common roof substrates
Tack-free and cure time	2 hours tack free, 4 to 6 days cure
Application temperature	0 F to 140 F
Service temperature	-40 F to 180 F
Role in the system	Gunned sealant for masonry, glazing and metal details, under a coating system or as the finished detail

Ordering
SKU	CY-KST058400
Sold by	Case
Lead time	In stock · 1–3 business days
Warranty	Goods are warranted to match their description and to be free of manufacturing defects when delivered; any manufacturer system warranty is issued by the manufacturer under its own terms

Delivery and lead time

Ships in 1–3 business days from order confirmation. Your quote states the delivery window before you commit.
Pails, rolls and cartons ship by parcel or pallet; drums and totes by freight to your site. Tell us about lift-gate, access or unloading needs when you ask for a quote.

Shipping & returns

How to order

Send the quantity, the site ZIP and your timing.
A person sends one written quote with the delivered price and the ship window. We reply within one business day.
Confirm the quote, and your order ships in 1–3 business days from confirmation.

Request a quote

Questions

When is the tripolymer the right cartridge?: When the joint is masonry, concrete, glass, vinyl or tile. Those are on its list and not on the polyurethane or MS hybrid lists, which cover metal and membranes respectively.
How long does it take to cure?: The maker lists 2 hours to tack free and 4 to 6 days to cure. That is the longest cure in the cartridge range, so plan the detail work ahead of anything that has to go over it.
Is it suitable for EPDM, TPO or PVC?: Those membranes are not on this list. The MS hybrid sealants are the ones listed for EPDM, TPO and PVC: the black KST058310 over aged TPO and PVC as they are, the white over TPO and PVC primed with KST058700.
10.3 oz or 29 oz?: The 10.3 oz cartridge, 24 per case, suits scattered detail work. KST058401 is the 29 oz cartridge, 6 per case, for long continuous runs where reloading costs more than the bigger tube.
How does it ship?: This is a solvent-based product, so it ships as regulated freight, quoted with the order. Stocked cases go out in 1 to 3 business days.