The word sandblasting is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 21
Highest Scoring Words With Friends™ Play In The Letters sandblasting
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Seven Letter Word Alert: (28 words)
abasing, abating, abstain, against, anginal, anginas, anglist, balding, banding, bandits, basalts, basting, dalasis, dingbat, inlands, islands, ladings, landing, lasting, ligands, salting, sandals, sandbag, sanding, signals, slating, stalags, tabling