Dispenser and process

A dispenser for dispensing a mixture of a first flowable material and a second flowable material, the dispenser comprising:

• a substantially cylindrical rigid container having a closed end, the container having a first chamber and a second chamber, the first chamber adapted to contain the first material, the second chamber adapted to contain the second material;
• a first membrane disposed within the container separating the first chamber and the second chamber, the first membrane having a weld seam, wherein a first segment of injected molded material abuts a second segment of injected molded material to form the weld seam;
• and
• a second membrane connected to the container proximate the second chamber;
• wherein the container further comprises a third chamber confronting the second membrane;
• wherein the container has a protrusion proximate the third chamber and wherein a portion of the container defining the third chamber is slidably connected to the container by the protrusion.