Is there any real advantage to white cement compared to regular cement?...

NO!

Besides making custom colored rocks for customer request,

all of our rocks are created with base grey portland

cement that can be purchased anywhere.

What exactly is white cement...

White portland cement has essentially the same properties as gray cement, except for color,

 which is a very important quality control issue in the industry. It is readily available throughout North America.

The color of white cement depends on raw materials and the

manufacturing process. It is the metal oxides (primarily iron

 and manganese) that influence the whiteness and undertone

 of the material. White cement is manufactured to conform

to ASTM C 150, Specification for Portland Cement. Although

 Types I, II, III, and V white cements are produced,Types I

and III are the most common.

White cements produce clean, bright colors,especially for

light pastels. Many different colorscan be created by adding

 pigments to concretemade with white portland cement. Two

 or morepigments can be combined to achieve a widerange

of colors. White cement (or a mixture of white and gray cement)

can be specified to provide a consistent color of choice.

An even greater variety of decorative looks can be achieved

 by using colored aggregates and varying the surface finish

 treatment or texture.

So besides just being easier to add tint or color for a more

custom looking product, the only difference is its about

twice the price of standard grey cement.

For more detailed information and peace of mind you

can read all about white cement at the official portland

cement website below...
: Portland Cement Official Site :