Product Data Sheet Safety Data Sheet Show all documents

SikaLastomer®-511

Non-skinning butyl sealant for standing seam roofs

SikaLastomer®-511 is a non-skinning and non-corrosive butyl rubber-based sealant. It remains malleable so that the sealant can be factory dispensed and then joined in the field, depending upon the temperatures at which the panels are stored. Metal panels can be easily separated after extended periods for repair and maintenance.  

  • Very good adhesion to common standing seam substrates
  • Good pumpability and gunnability
  • Panels can be bonded in the field up to 6 months after initial application
  • Contains additive to inhibit a broad spectrum of microbial activity
 
Product Data Sheet Safety Data Sheet Show all documents

PRODUCT BENEFITS

  • Very good adhesion to common standing seam substrates
  • Good pumpability and gunnability
  • Panels can be bonded in the field up to 6 months after initial application
  • Contains additive to inhibit a broad spectrum of microbial activity
 

Usage

SikaLastomer®-511 is designed for factory sealing the female lip of standing seam roof and wall panels as well as concealed end laps. SikaLastomer®-511 will adhere to the mating surface and flow into the panel joint when assembly is constructed within a temperature range of -25 °C to 60 °C.  This product is suitable for experienced professional users only. Tests under actual processing conditions and with additional materials such as fibers and release agents must be performed to proof material compatibility.  

Packaging

Cartridge

300 mL

Pail19 L
Drum195 L

Product Details

Typical Product Data
Chemical base

Butyl

Colour (CQP001-1)

Off-white

Density (uncured)

1.09 kg/l

Staining (ASTM D 925)

No staining on common substrates

Application temperature

ambient

5 ─ 40 °C

Slump (ASTM D 2202)

1 mm A

Shrinkage (CQP014-1)

16 %

Heat aging (ASTM C-792-75, C-661-91, D 2240-92)

11 % weight loss

No cracking or chalking

Service temperature

-50 ─ 105 °C

Shelf life

cartridges / pails / drums

12 months B

CQP = Corporate Quality Procedure

A) 23 °C / 50 % r. h.

B) stored below 25 °C
Technical Information

CHEMICAL RESISTANCE

The chemical resistance is influenced by several factors such as chemical composition, concentration, period of exposure and temperature. Therefore, a project related testing in case of chemical or thermal exposure is required.

Application

Application Information

Surface Preparation

The surface must be clean, free from dust, grease, oil and water.

Application

SikaLastomer®-511 must wet the entire bonding surface, without interruptions.
SikaLastomer®-511 can be processed with manual, pneumatic or electric driven piston guns as well as with adequate processing equipment. In case of pump equipment, it must be applied at application temperature between 5 °C and 40 °C. 
For advice on selecting and setting up a suitable pump system, contact the System Engineering Department of Sika Industry.

Removal

SikaLastomer®-511 can be removed from tools and equipment with Sika® Remover-208 or another suitable solvent.
Do not use solvents on skin.

STORAGE CONDITIONS

SikaLastomer®-511 has to be stored below 25 °C in a dry place. If the product is stored below 10 °C, it is required to pre-condition the product to at least 15 °C prior to loading under the pump. This can be accomplished by storing the product for 48 hours at the assembly line prior to use. If the storage temperature is below 0 °C, the time to re-condition the product is substantially longer.

 

For transportation purposes, the storage temperature can be exceeded (up to 50 °C) for a period of two weeks maximum.
Note: Storage outside of standard conditions can affect the shelf life.

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