Why pick the tripolymer over the black polyurethane?

For the substrate. Asphalt, brick, concrete, glass, vinyl and tile are on the tripolymer list; the polyurethane list runs to metal, masonry, wood and shingles. Match the cartridge to the joint.

Can it be coated over?

The manufacturer's product data sheets for the sealant and for the coating settle that, including how long the bead needs first. Cure is listed at 4 to 6 days, so allow for it in the program.

Is it suitable for single-ply membranes?

No. EPDM, TPO and PVC 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.

Which size should I order?

10.3 oz, 24 per case, for scattered detail work. KST058411 is the 29 oz cartridge, six per case, for continuous runs, and it needs a barrel gun.

It is a solvent-based product and ships as regulated freight, quoted with the order. Stocked cases leave in 1 to 3 business days.

Roofing sealants

KST058410 Uniflex Tripolymer Roofing Sealant, Black, 10.3 oz Cartridge

Tripolymer sealant
Sold by the case

Black tripolymer in a 10.3 oz cartridge, 24 per case. Asphalt is on this sealant's substrate list, and black is the color that suits it, along with dark metal, tile and weathered masonry details.

Key benefits

Black suits the substrate this sealant is often used on, since asphalt is on the maker's list
Same broad list as the white and clear grades: coated metal (Kynar), brick, concrete, glass, vinyl, steel, tile, wood and asphalt
Applied from 0 F to 140 F, the widest application range of the cartridge sealants
Service temperature listed from -40 F to 180 F
10.3 oz cartridges, 24 per case, with a 29 oz version as KST058411

Priced per project

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

Request a quote Ask a question about this product

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

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Shipping & returns

Overview

Black is the working color on a bituminous roof, and asphalt is on this sealant’s substrate list, which is a combination not many cartridges offer. KST058410 is the black grade of the Uniflex solvent-based tripolymer, a 10.3 oz tube packed 24 to the case.

Its list is the widest in the cartridge range: coated metal (Kynar), brick, concrete, glass, vinyl, steel, tile, wood and asphalt. The maker states application from 0 F to 140 F, service from -40 F to 180 F, tack free in 2 hours, and cure over 4 to 6 days, which is worth knowing before anything is scheduled to go over the bead. White is KST058400, clear is KST058450, and the same black material comes as the 29 oz KST058411.

Application

Open the joint up and get it clean, dry and sound. Failed sealant out, dust off porous surfaces, oil off metal.
Prime by substrate where the specification calls for it, with the metal primer on steel and the concrete primer on cured concrete.
Details before field. Gun the joints, tape or reinforce what needs it, and coat the open roof afterwards.
Gun a full bead and tool it into the joint so it wets both faces, working it into porous brick and asphalt rather than laying it on top.
Follow the manufacturer’s product data sheet for joint design, bead size, cure and anything applied over the sealant.

Ordering

KST058410 is sold by the 10.3 oz cartridge and the case of 24. Stocked cases ship in 1 to 3 business days, and an off-shelf color is ordered in and takes 1 to 2 weeks. The product is solvent-based, 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

Asphalt and bituminous details

Terminations, collars and joint work on asphalt surfaces and bituminous roofs, where asphalt appears on the maker's substrate list.
Weathered masonry joints

Brick, block and concrete joints on older parapets and copings, where a dark bead reads better than a white one.
Dark coated metal

Panel laps, fastener heads and trim on bronze, brown and black coated metal (Kynar) and steel.
Tile roof details

Ridge, hip and penetration joints on tile roofs, where the sealant grips a hard surface and stays flexible.
Cold-weather repairs

Joint work down to the listed 0 F application limit, on roofs that will be coated later in the season.

Specifications

Specifications: KST058410 Uniflex Tripolymer Roofing Sealant, Black, 10.3 oz Cartridge
Manufacturer	Sherwin-Williams (Uniflex line)
Part number	KST058410
Color	Black
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 asphalt, masonry and metal details, under a coating system or as the finished detail

Ordering
SKU	CY-KST058410
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

Why pick the tripolymer over the black polyurethane?: For the substrate. Asphalt, brick, concrete, glass, vinyl and tile are on the tripolymer list; the polyurethane list runs to metal, masonry, wood and shingles. Match the cartridge to the joint.
Can it be coated over?: The manufacturer's product data sheets for the sealant and for the coating settle that, including how long the bead needs first. Cure is listed at 4 to 6 days, so allow for it in the program.
Is it suitable for single-ply membranes?: No. EPDM, TPO and PVC 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.
Which size should I order?: 10.3 oz, 24 per case, for scattered detail work. KST058411 is the 29 oz cartridge, six per case, for continuous runs, and it needs a barrel gun.
What about freight?: It is a solvent-based product and ships as regulated freight, quoted with the order. Stocked cases leave in 1 to 3 business days.