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Sika
SikaFlex 221 Pu Adhesive And Sealant
About the product
Multi-use adhesive and sealant with good adhesion properties.
Sikaflex-221 is a multi-purpose one-component quality polyurethane adhesive and sealant, Can be used for internal joints and light gluing tasks. Aging resistant. Can be painted over. Hardens with the humidity of the air.
Application
Sikaflex®-221 has good adhesion to many different materials and forms permanently elastic joints with high adhesion strength. Suitable for materials such as metal, metal primers and paints (two-component systems), ceramic materials and plastics.
Is ideal as an indoor joint and light adhesive applications. Seek advice and carry out tests using original materials prone to cracking before using Sikaflex®-221.
This product should only be used by professional, experienced users. Tests must be carried out on the current items and under the current conditions to ensure adhesion and material compatibility.
PRODUCT BENEFITS
Adheres to many materials. Aging resistant. Can be painted over. Can be sanded. Does not cause corrosion. Weak odor. ISEGA and NSF approved for contact with food.
Preparation of the surface
The surfaces must be clean, dry and free of grease, oil and dust.
The choice of surface treatment depends on the current type of surface and is crucial for a long-lasting result. Suggestions for pre-treatment can be found in the latest version and relevant Sika® Pre-Treatment Chart. These suggestions are based on experience and testing on original surfaces should be carried out to verify suitability.
Application
Sikaflex®-221 can be used between 5 °C and 40 °C, but changes in reactivity and application properties must be taken into account. The optimum temperature for substrate and glue is between 15 °C and 25 °C.
Sikaflex®-221 can be applied with a manual, compressed-air or electric grouting gun, as well as with pump equipment. Advice on choosing and setting up a suitable pump system can be obtained from Sika Technical Service Industry.
Machining and finishing
Smoothing must take place before the joint compound forms a skin. It is recommended to use Sika® Tooling Agent N. Other products should be tested before use to determine product suitability.
Cleaning
Uncured Sikaflex®-221 can be removed from tools and equipment with Sika® Remover-208 or another suitable solvent. Hardened material can only be removed mechanically. Hands and exposed skin areas are cleaned immediately with Sika® Cleaner-350H cleaning wipes or a suitable industrial hand cleaner and water. Do not use solvents!
Paintability
Sikaflex®-221 can be painted over after it has formed a skin. The adhesion of the paint can be improved by pre-treating the surfaces with Sika® Aktivator-100 or Sika® Aktivator-205 in the painting process. If the paint requires a baking process (> 80 °C), the best result is achieved when the joint is fully cured. All paints must be tested by making a preliminary trial under the applicable conditions. The elasticity of paints is usually lower than the grout. This can cause cracks in the paint where the joint is.
- Chemical base: One-component polyurethane
- Color (CQP001-1) White, grey, black
- Curing mechanism Moisture curing
- Density depending on color 1.3 kg/l
- Non-sag property Good
- Application temperature Ambient temperature 5 ─ 40 °C
- Skin formation time (CQP019-1) 60 minutesA
- Opening time (CQP526-1) 45 minutes A
- Curing speed (CQP049-1) (see chart)
- Shrinkage (CQP014-1) 5%
- Shore A hardness (CQP023-1 / ISO 7619-1) 40
- Breaking strength (CQP036-1 / ISO 527) 1.8 MPa
- Elongation at break (CQP036-1 / ISO 37) 500%
- Tear strength (CQP045-1 / ISO 34) 7 N/mm
| Go Big | Number of sales units | ||
|---|---|---|---|
| 1 BOX | 12 |
Safety and enviroment
H sentences
- H332: Harmful if inhaled.
- H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- H413: May cause long lasting harmful effects to aquatic life.
- H226: Flammable liquid and vapour.
- H373: May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H372: Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H315: Causes skin irritation.
- H312: Harmful in contact with skin.
- H336: May cause drowsiness or dizziness.
- H411: Toxic to aquatic life with long lasting effects.
- H351: Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H319: Causes serious eye irritation.
- H412: Harmful to aquatic life with long lasting effects.
- H317: May cause an allergic skin reaction.
- H330: Fatal if inhaled.
- H335: May cause respiratory irritation.
- H304: May be fatal if swallowed and enters airways.
P phrases
- P342: If experiencing respiratory symptoms:
- P304 + P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
- P501: Dispose of contents/container to...
- P260: Do not breathe dust/fume/gas/mist/vapours/spray.
- P342 + P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/…
- P340: Remove person to fresh air and keep comfortable for breathing.
- P311: Call a POISON CENTER/doctor/…
- P284: [In case of inadequate ventilation] wear respiratory protection.
- P304: IF INHALED:
Flex 221 Light Grey
-
Stock: 17 in stock
-
Item no.: 52916
-
Unit: 1 PCS(300 ML)
| Go Big | Number of sales units | ||
|---|---|---|---|
| 1 BOX | 12 |
Safety and enviroment
GHS
H sentences
- H332: Harmful if inhaled.
- H372: Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H319: Causes serious eye irritation.
- H335: May cause respiratory irritation.
- H411: Toxic to aquatic life with long lasting effects.
- H336: May cause drowsiness or dizziness.
- H226: Flammable liquid and vapour.
- H304: May be fatal if swallowed and enters airways.
- H373: May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H330: Fatal if inhaled.
- H317: May cause an allergic skin reaction.
- H315: Causes skin irritation.
- H351: Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- H413: May cause long lasting harmful effects to aquatic life.
- H412: Harmful to aquatic life with long lasting effects.
- H312: Harmful in contact with skin.
P phrases
- P311: Call a POISON CENTER/doctor/…
- P342: If experiencing respiratory symptoms:
- P342 + P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/…
- P304 + P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
- P284: [In case of inadequate ventilation] wear respiratory protection.
- P501: Dispose of contents/container to...
- P304: IF INHALED:
- P340: Remove person to fresh air and keep comfortable for breathing.
- P260: Do not breathe dust/fume/gas/mist/vapours/spray.
| Go Big | Number of sales units | ||
|---|---|---|---|
| 1 BOX | 12 |
Safety and enviroment
H sentences
- H336: May cause drowsiness or dizziness.
- H413: May cause long lasting harmful effects to aquatic life.
- H319: Causes serious eye irritation.
- H351: Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H332: Harmful if inhaled.
- H372: Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H373: May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- H330: Fatal if inhaled.
- H312: Harmful in contact with skin.
- H335: May cause respiratory irritation.
- H412: Harmful to aquatic life with long lasting effects.
- H315: Causes skin irritation.
- H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- H304: May be fatal if swallowed and enters airways.
- H317: May cause an allergic skin reaction.
- H411: Toxic to aquatic life with long lasting effects.
- H226: Flammable liquid and vapour.
P phrases
- P304 + P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
- P260: Do not breathe dust/fume/gas/mist/vapours/spray.
- P340: Remove person to fresh air and keep comfortable for breathing.
- P304: IF INHALED:
- P311: Call a POISON CENTER/doctor/…
- P342: If experiencing respiratory symptoms:
- P342 + P311: If experiencing respiratory symptoms: Call a POISON CENTER/doctor/…
- P501: Dispose of contents/container to...
- P284: [In case of inadequate ventilation] wear respiratory protection.
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