Putty and Fillers


NO MORE GAPS is a durable, flexible acrylic gap sealant for interior and exterior applications where joint movement causes rigid fillers to crack or fall out. 

It is available in white or grey.


  • Excellent adhesion - to brick, concrete, timber, fiber cement Sheeting, hardboards, laminated plastics, ceramics, aluminum, and painted surfaces.  
  • Water-based - It is easy to use, and cleans up with water before it has dried.  
  • Flexible - Capable of joint movement of +/- 10% of joint width. Ideal for use where slight joint movement occurs and where conventional fillers will crack and fall out.  
  • Paintable - Can be overpainted with oil or water-based  paints after the surface has firmly skinned  
  • (approximately two hours after application). Wide joints are best left for 48 hours before painting as shrinking during drying can cause the paint to crack,  allowing the sealant beneath to show through. (See  note under ‘HOW TO USE’)  
  • Sag resistant  
  • Non-staining - Will NOT stain building materials.  ∙ Good resistance to weathering.  
  • Estimated Life - 20 years.


(Indicative data only - not intended for use in preparing specifications.) 

1. Colours: White and grey.  

2. Tack Free Time, Minutes (at 25oC and 50% R.H.): 60 (longer at low temperatures and high humidity) 

3. Skin Time, Minutes (at 25oC and 50% R.H.): 30 (longer at low temperatures and high humidity) 

4. Working Time, Minutes (at 25oC and 50% R.H.): 30 (longer at low temperatures and high humidity) 

5. Flow/Sag/Slump (Mil-S 8802E): Less than 2mm.  

6. Viscosity (Haf/Heli TE/5 at 25oC): 9,000-10,500P  

7. Non Volatile Content: Approx. 82% w/w


As cured - after 21 days at 25oC and 50% R.H. 

1 Durometer Hardness, Shore A,  Points: Greater than 40  

2 Ultimate Tensile Strength, MPa (ASTM  D412): 0.8  

3 Maximum Elongation, % (ASTM  D412): 150%  

4 Peel Strength, Anodised Aluminium, kg-cm 1: 2.0  5 Joint Movement Capability:  

+/- 10% of joint width (where depth not greater than half joint width).  


1. Surfaces to be caulked must be thoroughly clean and free from dust, grease, flaking paint, and old or crumbling caulk. Remove soap residue from tiles using a brush or detergent and then rinse off with water. Other surfaces can be cleaned with Selleys  SOLVENT ACETONE to remove grease residues. 

2. Extrude a bead of product with steady pressure,  pushing caulk ahead of the applicator nozzle. This method will force the caulk into the crack and smooth the surface at the same time. The caulk can be tooled with a wet finger or knife if desired.  

3. Allow the surface to the skin firmly before painting. If oil-based paints are to be used or if gaps are large,  allow the sealant to set for 48 hours before painting.  

Note: Paints that shrink during drying may crack, e.g. some water-based undercoats and flat paints. Test paint on a small section of sealant first. 

The likelihood of paint cracking may be reduced by first: 

(i) Painting the sealant with vinyl/acrylic semi-gloss  paint or oil-based undercoat and/or,  

(ii) Allowing sealant to cure thoroughly before painting.


NO MORE GAPS is a low hazard material. 

In case of eye contact flush with plenty of water for  15 minutes. 


Any excess caulk should be cleaned up with water (a damp  cloth) immediately after application. Cured caulk will need  to be cut away. Remaining caulk can be softened with Selleys SOLVENT ACETONE and then removed. 

NO MORE GAPS will skin after approx. 30 minutes  and it cures within 48 hours to a durable, flexible seal.  Allow for longer skin and cure times under cold/damp  conditions. 

Product should be protected from rain until  

firmly skinned.