Zinc oxide based cement:

Pink (harder, for longer duration), White (hard, for medium/short duration), Grey (normal, for shorter duration).
The consistency of the filling is like a play dough (plasticine) and it may be sometime hard to take it out of the tube; the best way is to fold the end of the tube and put enough pressure to let the filling come out. You could also use a small spatula to take just a small amount of the filling needed.
The cap of the filling tube is not a screw in cap so after your application you can just push the cap back to prevent the paste to dry out quickly.

The setting can be affected by moisture, so it would be better to clean the tooth with a cotton bud or you can purchase on our website an Examination Kit with Mirror, Tweezers and a Probe (to better clean the cavity); if you buy the kit you could ask for a complimentary bag with 10 cotton pellets to better clean and dry the cavity before applying the paste.
Avoid putting pressure or eating on that side for a couple of hour and consider a soft diet afterwards.

As this is a temporary solution, please visit your dentist to get the tooth checked and the temporary filling replaced with a permanent one.

INDICATIONS
Temporary filling of occlusion-loaded restorations.

PROPERTIES
Quick and void-free curing in moist environment.
Slight expansion of the filling material ensures a well-sealed margin.
Simple to apply with filling instruments

Buying Options available:
1 tube of 7g (unboxed) (£5.80)
10 tubes of 7g (boxed) (£35.50)

Same product in a 28g jar (value for money at £18):
3M ESPE - Cavit Temporary Dental Filling White 

For a longer lasting, but still temporary solution, you could try IRM:
Dentsply - IRM (Intermediate Restorative Material) Reinforced Zinc Oxide Eugenol: 

Reserved for professional use in general dental practice.
In proceeding with the purchase of this products, the buyer declares under his/her own responsibility to be a healthcare professional.