Solutions:

• Ensure good tissue management - no gingivitis or bleeding sulcus. 
• Double cord technique may alleviate.
• Use gingival retraction clay/paste such as Espasyl-Kerr, Access-Centrix Inc., Astringent Retraction Paste-3M.

Solution:

• Keep the mix-tip permanently immersed in the paste to avoid the formation of air bubbles. Apply a liberal amount of wash material into the sulcus. Start from the bottom up and cover the whole abutment tooth with the syringing material. Always keep the tip in close proximity to the surface.

• Keep tip continually submerged within impression material and sulcus.

Solution:

• May require a wash material with a higher tear strength.
• Additional tooth preparation in a margin area to create a more adequate sulcus impression material width.