SPECIFICATION
ASTM C494 TYPES B & D CRD - C87 TYPES B & D; BS 5075 IS-9103-79

DESCRIPTION
Perma Retard is a liquid admixture for concrete based on refined Ligno sulphonates and Naphthalene formaldehyde blends. Perma Retard helps in production of super plasticised and set retarded concrete to enable the delayed pouring of concrete after its production or to get over the problems arising during hot weather concreting.

PRIMARY USES
To produce concrete with delayed initial and final setting times.

ADVANTAGES
Use of Perma Retard in hot weather ensures continuous pours resulting in monolithic sound concrete. Improves ultimate strengths significantly. Helps saving in cements in rich mixes.

DIRECTIONS FOR USE
Perma Retard should be added to the concrete mix along with water in the desired dosage. Perma Retard should not be added to the dry mix.

DOSAGE
Field Trials should be carried out with the given cement and aggregates to arrive at optimum dosages for the desired property to be achieved. However for guidance we specify a range of 0.3 to 0.9 percent by weight of cement.

PROPERTIES

Form	Liquid
Colour	Dark Brown / Black
Specific Gravity	1.19 at 25低
Chlorides	Free from any added chloride.
Sulphates	Nil
Nitrates	Nil
Freezing Point	0低. Can be reconstituted if stirred after thawing
Flash Point	None

HEALTH AND SAFETY
Perma Retard is not a health hazard or fire risk, spillages should be washed immediately to avoid stains and slipping.

PACKING
20 Litres, 100 Litres and 210 Litres drum.

SHELF LIFE
12 Months from the date of manufacture.