diff --git a/src/main/java/com/avaje/ebeaninternal/server/core/BeanRequest.java b/src/main/java/com/avaje/ebeaninternal/server/core/BeanRequest.java
index 49a11d1ae..87fe4d378 100644
--- a/src/main/java/com/avaje/ebeaninternal/server/core/BeanRequest.java
+++ b/src/main/java/com/avaje/ebeaninternal/server/core/BeanRequest.java
@@ -128,17 +128,17 @@ public abstract class BeanRequest {
 		return transaction.getInternalConnection();
 	}
 
-    /**
-     * Return true if SQL should be logged for this transaction.
-     */
-    public boolean isLogSql() {
-        return transaction.isLogSql();
-    }
-    
-    /**
-     * Return true if SUMMARY information should be logged for this transaction.
-     */
-    public boolean isLogSummary() {
-        return transaction.isLogSummary();
-    }
+  /**
+   * Return true if SQL should be logged for this transaction.
+   */
+  public boolean isLogSql() {
+    return transaction.isLogSql();
+  }
+
+  /**
+   * Return true if SUMMARY information should be logged for this transaction.
+   */
+  public boolean isLogSummary() {
+    return transaction.isLogSummary();
+  }
 }
diff --git a/src/main/java/com/avaje/ebeaninternal/server/core/OrmQueryRequest.java b/src/main/java/com/avaje/ebeaninternal/server/core/OrmQueryRequest.java
index 94f045241..d26fae2a5 100644
--- a/src/main/java/com/avaje/ebeaninternal/server/core/OrmQueryRequest.java
+++ b/src/main/java/com/avaje/ebeaninternal/server/core/OrmQueryRequest.java
@@ -362,9 +362,7 @@ public final class OrmQueryRequest<T> extends BeanRequest implements BeanQueryRe
    * Log the SQL if the logLevel is appropriate.
    */
   public void logSql(String sql) {
-    if (transaction.isLogSql()) {
-      transaction.logSql(sql);
-    }
+    transaction.logSql(sql);
   }
 
   /**
diff --git a/src/main/java/com/avaje/ebeaninternal/server/lib/util/Str.java b/src/main/java/com/avaje/ebeaninternal/server/lib/util/Str.java
new file mode 100644
index 000000000..4da7c2a4c
--- /dev/null
+++ b/src/main/java/com/avaje/ebeaninternal/server/lib/util/Str.java
@@ -0,0 +1,38 @@
+package com.avaje.ebeaninternal.server.lib.util;
+
+/**
+ * String utility for adding strings together.
+ * <p>
+ * Predicts a decent buffer size to append the strings into.
+ */
+public class Str {
+
+  /**
+   * Append strings together.
+   */
+  public static String add(String s0, String s1, String ... args) {
+    
+    // determine a decent buffer size
+    int len = 16 + s0.length() + s1.length();
+    for (int i = 0; i < args.length; i++) {
+      len += args[i].length();
+    }
+    
+    // append all the strings into the buffer 
+    StringBuilder sb = new StringBuilder(len);
+    sb.append(s0).append(s1);
+    for (int i = 0; i < args.length; i++) {
+      sb.append(args[i]);
+    }
+    return sb.toString();
+  }
+  
+  /**
+   * Append two strings together.
+   */
+  public static String add(String s0, String s1) {
+    StringBuilder sb = new StringBuilder(s0.length() + s1.length() + 5);
+    return sb.append(s0).append(s1).toString();
+  }
+  
+}
diff --git a/src/main/java/com/avaje/ebeaninternal/server/persist/dml/DmlHandler.java b/src/main/java/com/avaje/ebeaninternal/server/persist/dml/DmlHandler.java
index bf12d7851..10656e8aa 100644
--- a/src/main/java/com/avaje/ebeaninternal/server/persist/dml/DmlHandler.java
+++ b/src/main/java/com/avaje/ebeaninternal/server/persist/dml/DmlHandler.java
@@ -15,6 +15,7 @@ import com.avaje.ebeaninternal.api.SpiTransaction;
 import com.avaje.ebeaninternal.server.core.PersistRequestBean;
 import com.avaje.ebeaninternal.server.core.PstmtBatch;
 import com.avaje.ebeaninternal.server.deploy.BeanProperty;
+import com.avaje.ebeaninternal.server.lib.util.Str;
 import com.avaje.ebeaninternal.server.persist.BatchedPstmt;
 import com.avaje.ebeaninternal.server.persist.BatchedPstmtHolder;
 import com.avaje.ebeaninternal.server.persist.dmlbind.BindableRequest;
@@ -56,7 +57,7 @@ public abstract class DmlHandler implements PersistHandler, BindableRequest {
     this.transaction = persistRequest.getTransaction();
     this.logLevelSql = transaction.isLogSql();
     if (logLevelSql) {
-      this.bindLog = new StringBuilder();
+      this.bindLog = new StringBuilder(50);
     } else {
       this.bindLog = null;
     }
@@ -137,7 +138,7 @@ public abstract class DmlHandler implements PersistHandler, BindableRequest {
   protected void logSql(String sql) {
     if (logLevelSql) {
       if (TransactionManager.SQL_LOGGER.isTraceEnabled()) {
-        sql += "; --bind(" + bindLog + ")";
+        sql = Str.add(sql, "; --bind(", bindLog.toString(), ")");
       }
       transaction.logSql(sql);
     }
diff --git a/src/main/java/com/avaje/ebeaninternal/server/query/CQueryEngine.java b/src/main/java/com/avaje/ebeaninternal/server/query/CQueryEngine.java
index 02eda4d89..36526b3ed 100644
--- a/src/main/java/com/avaje/ebeaninternal/server/query/CQueryEngine.java
+++ b/src/main/java/com/avaje/ebeaninternal/server/query/CQueryEngine.java
@@ -14,6 +14,7 @@ import com.avaje.ebean.config.dbplatform.DatabasePlatform;
 import com.avaje.ebeaninternal.api.BeanIdList;
 import com.avaje.ebeaninternal.api.SpiQuery;
 import com.avaje.ebeaninternal.server.core.OrmQueryRequest;
+import com.avaje.ebeaninternal.server.lib.util.Str;
 import com.avaje.ebeaninternal.server.persist.Binder;
 import com.avaje.ebeaninternal.server.transaction.TransactionManager;
 
@@ -53,7 +54,7 @@ public class CQueryEngine {
       if (request.isLogSql()) {
         String logSql = rcQuery.getGeneratedSql();
         if (TransactionManager.SQL_LOGGER.isTraceEnabled()) {
-          logSql += "; --bind("+rcQuery.getBindLog()+")";
+          logSql = Str.add(logSql, "; --bind(", rcQuery.getBindLog(), ")");
         }
         request.logSql(logSql);
       }
@@ -88,7 +89,7 @@ public class CQueryEngine {
       if (request.isLogSql()) {
         String logSql = rcQuery.getGeneratedSql();
         if (TransactionManager.SQL_LOGGER.isTraceEnabled()) {
-          logSql += "; --bind("+rcQuery.getBindLog()+")";
+          logSql= Str.add(logSql, "; --bind(", rcQuery.getBindLog(), ")");
         }
         request.logSql(logSql);
       }
@@ -241,7 +242,7 @@ public class CQueryEngine {
 
     String sql = query.getGeneratedSql();
     if (TransactionManager.SQL_LOGGER.isTraceEnabled()) {
-      sql += "; --bind("+query.getBindLog()+")"; 
+      sql= Str.add(sql, "; --bind(", query.getBindLog(), ")");
     }
     query.getTransaction().logSql(sql);
   }
diff --git a/src/main/java/com/avaje/ebeaninternal/server/query/DefaultRelationalQueryEngine.java b/src/main/java/com/avaje/ebeaninternal/server/query/DefaultRelationalQueryEngine.java
index b7a9eaa63..e7314a9f0 100644
--- a/src/main/java/com/avaje/ebeaninternal/server/query/DefaultRelationalQueryEngine.java
+++ b/src/main/java/com/avaje/ebeaninternal/server/query/DefaultRelationalQueryEngine.java
@@ -22,6 +22,7 @@ import com.avaje.ebeaninternal.api.SpiTransaction;
 import com.avaje.ebeaninternal.server.core.Message;
 import com.avaje.ebeaninternal.server.core.RelationalQueryEngine;
 import com.avaje.ebeaninternal.server.core.RelationalQueryRequest;
+import com.avaje.ebeaninternal.server.lib.util.Str;
 import com.avaje.ebeaninternal.server.persist.Binder;
 import com.avaje.ebeaninternal.server.transaction.TransactionManager;
 import com.avaje.ebeaninternal.server.type.DataBind;
@@ -94,7 +95,7 @@ public class DefaultRelationalQueryEngine implements RelationalQueryEngine {
 				if (request.isLogSql()) {
 				  String logSql = sql;
 				  if (TransactionManager.SQL_LOGGER.isTraceEnabled()) {
-				    logSql += "; --bind("+bindLog+")";
+				    logSql = Str.add(logSql, "; --bind(", bindLog, ")");
 				  }
 					t.logSql(logSql);
 				}
diff --git a/src/main/java/com/avaje/ebeaninternal/server/transaction/JdbcTransaction.java b/src/main/java/com/avaje/ebeaninternal/server/transaction/JdbcTransaction.java
index f4a7b03b3..7f22618e2 100644
--- a/src/main/java/com/avaje/ebeaninternal/server/transaction/JdbcTransaction.java
+++ b/src/main/java/com/avaje/ebeaninternal/server/transaction/JdbcTransaction.java
@@ -20,6 +20,7 @@ import com.avaje.ebean.bean.PersistenceContext;
 import com.avaje.ebeaninternal.api.DerivedRelationshipData;
 import com.avaje.ebeaninternal.api.SpiTransaction;
 import com.avaje.ebeaninternal.api.TransactionEvent;
+import com.avaje.ebeaninternal.server.lib.util.Str;
 import com.avaje.ebeaninternal.server.persist.BatchControl;
 import com.avaje.ebeaninternal.server.transaction.TransactionManager.OnQueryOnly;
 
@@ -476,13 +477,13 @@ public class JdbcTransaction implements SpiTransaction {
   }
   
   public void logSql(String msg) {
-    TransactionManager.SQL_LOGGER.trace(logPrefix+msg);
+    TransactionManager.SQL_LOGGER.trace(Str.add(logPrefix, msg));
   }
   
   public void logSummary(String msg) {
-    TransactionManager.SUM_LOGGER.debug(logPrefix+msg);
+    TransactionManager.SUM_LOGGER.debug(Str.add(logPrefix, msg));
   }
-
+  
   /**
    * Return the transaction id.
    */